Position emission tomography is utilized in conjunction with radioisotopes that are marked with tracers like 13N, 18F, and 150. These are radioactive variations of natural elements that can be detected by scanners.
A radioactive isotope is what?An unstable nucleus causes radioactive isotopes, which can be produced naturally or intentionally, to decay and emit alpha, beta, or gamma rays until stability is established. Radioactivity is hazardous because it can harm internal cells by penetrating the skin.
The usage of radioactive isotopes in which of the following situations?The ages of fossils can be determined using radioactive isotopes, as can the processes involved in industrial processes and chemical reactions, as well as the diagnosis and treatment of disease.
To know more about diagnose diseases visit:-
https://brainly.com/question/14809467
#SPJ4
what is considered to be the source for new alleles
Answer:
Mutation
Explanation: Mutation is the ultimate source of new alleles in plant pathogen populations.
Amniocentesis is a procedure for
obtaining fetal cells in a sample from the fluid surrounding the fetus.
testing the mother's blood for a protein associated with spina bifida.
obtaining a sample of the fetal part of the placenta.
testing the mother's blood for an excess of phenylalanine, indicating phenylketonuria (PKU).
Amniocentesis is a procedure for obtaining fetal cells in a sample from the fluid surrounding the fetus.
A medical procedure called amniocentesis involves taking a small sample of the fluid surrounding a developing child in the womb (amniotic fluid). Cells from the fetus are present in the fluid, which can be used to test for certain genetic diseases and chromosomal abnormalities.
The treatment typically lasts 30 minutes and is carried out between the 15th and 20th weeks of pregnancy. The uterus is reached through the abdominal wall, and a tiny amount of amniotic fluid is drawn out. The fluid is subsequently taken to a lab for analysis.
To know more about amniocentesis, click here,
brainly.com/question/1266693
#SPJ4
according to the criteria set by the usda, which of the following would be an appropriate label for an apple grown without toxic and persistent pesticides or fertilizers? a. organic made with organic ingredients b. 100 percent organic b. some organic ingredients
The following would be an appropriate label for an apple grown without toxic and persistent pesticides or fertilizers:
a. organic made with organic ingredients
What is organic ingredients?Organic produce is defined as having been cultivated on soil that had no banned compounds put to it for three years previous to harvest. The majority of synthetic fertilizers and insecticides are prohibited. While organic foods have a reputation for being healthful and nutritious, research demonstrate that there is no nutritional difference between organic and conventional meals.
Here,
The United States Department of Agriculture (USDA) has established criteria for labeling foods as "organic." In order for a food to be labeled as "organic," it must be produced without the use of toxic and persistent pesticides or fertilizers and meet other specific criteria. If a food is made with at least 70 percent organic ingredients, it can be labeled as "made with organic ingredients."
If a food is made with 100 percent organic ingredients, it can be labeled as "100 percent organic."
To know more about organic ingredients,
https://brainly.com/question/24787484
#SPJ4
Silvio wants to eat a healthy meal in the college dining hall. Which of the following choices is the BEST thing he can order?
A) salad made up of lettuce and creamy dressing
B) fried chicken in mushroom sauce
C) baked potato with salsa
D) apple and a donut
The best thing Silvio can order is probably salad made up of lettuce and creamy dressing. Option A is correct.
Salads are a good source of fiber, vitamins, and minerals, and can help provide the nutrients Silvio needs for a healthy meal. To make the salad even healthier, Silvio could choose a low-fat or vinaigrette dressing instead of creamy dressing, which is often high in calories and fat.
Fried chicken in mushroom sauce is high in calories and unhealthy fats and should be consumed in moderation. Baked potato with salsa can be a healthier choice if Silvio chooses a plain baked potato and limits the amount of added toppings, such as cheese and butter.
Apple and a donut is not a balanced or nutritious meal. While an apple is a good source of fiber and vitamins, a donut is high in sugar and unhealthy fats and should be consumed in moderation as part of a balanced diet.
To know more about lettuce here
https://brainly.com/question/2316253
#SPJ4
Which type of study collects data in the natural world, without manipulating the subject of study?
Question 7 options:
theoretical
experimental
observational
randomized
Answer:
ranfamonized.
Explanation:
Planning and Creating a Presentation In this activity, you will use presentation software to create a presentation of 15 to 20 slides explaining your arguments in support of or against the following statements: AIDS continues to be a global health crisis. AIDS still meets the definition of a pandemic. Your claims should be supported by scientifically complete evidence. Follow the steps provided to research, plan, and create your presentation. This guide about the research process can help. Part A: Ask Questions Begin by creating a list of questions to guide your research and help you form a convincing argument. Your presentation should answer some of these questions: What is the definition of a pandemic? How does a pandemic differ from an endemic or epidemic? What is the life cycle of the HIV virus once it enters the body? How does the genetic code of the virus change? How does HIV affect the body? How do people become infected with HIV? How does AIDS develop from an HIV infection? What are the current infection rates of HIV across the globe? Where is HIV/AIDS most prevalent? What treatments are currently available for HIV/AIDS? Do some regions of the world have better access to treatments than others? What is the average life expectancy for someone with HIV? Does life expectancy differ around the globe? Now write four additional questions about HIV/AIDS that could help strengthen your argument in the presentation. Part B: Find Credible Sources When designing a science presentation, look for credible sources. Science doesn’t show bias, but humans do. Avoid sites and articles that provide facts without citing proper scientific evidence. You must be able to identify reliable sites so that the data in your presentation is credible. Use sources that end in .gov, such as CDC.gov. These government sites are reliable sources. You can also use sites ending in .edu. They are usually trustworthy, but sometimes students, not scientists, write content for .edu websites. Always identify the source’s author before proceeding. Some .org and .com sites are credible, but it’s important to verify their authenticity. When reviewing a source, ask these questions: Who is the author? Is this person an HIV or AIDS expert? What is the document’s purpose? Does the document state facts that scientists can prove with evidence? Are there opinions in the document? How old is the document? Do other credible sources support the statements in the document? Search for credible websites and note the information they contain. Write down two sources that you will use for your presentation, and cite them using Modern Language Association (MLA) citation methods. Part C: Take Notes In a separate location, take notes from the sources you have identified. The notes will provide details for your presentation. While taking notes from texts and websites, use these reading strategies. In the space provided, write four pieces of information that you intend to use in your presentation. Part D: Organize Your Information After you’ve gathered research and answered all your questions, create an outline in the answer space. Following these guidelines for writing a five-paragraph essay may help you structure your outline. Be sure to account for the claim you’re making in your introduction, and include a works cited page at the end with the authors and websites you consulted. Part E: Select Audio and Video An audiovisual presentation uses pictures and words to clearly present information. These tips will help you effectively build your presentation: Limit text on your slides: Insert key words or phrases that highlight your points instead of typing your entire speech on the slide. When possible, use pictures instead of words: Use representative figures such as pictures, graphs, and charts to depict information or evidence rather than using huge blocks of text. Fill in your speaker’s notes: Presentation software includes a notes section where you can add speaker’s notes for your own reference. In this section, you can cover all the details you want to talk without showing them on your slides. Your speaker’s notes should be clear and coherent enough so that someone else could deliver the presentation to an audience. You must complete your speaker’s notes to get full credit for the assignment. List two to three audio, video, or photo resources that you wish to use in your presentation and paste them in the provided space. Part F: Create and Deliver Your Presentation Use your outline and the materials you’ve collected to create your presentation. It should contain 15 to 20 slides. Be sure to proofread and revise your writing to catch any errors in grammar, spelling, logic, or cohesion. Remember that you must add speaker’s notes as well as a works cited page at the end.
don't spam.
Part A: Additional Questions
How has the global response to the HIV/AIDS pandemic changed over the years? What are the current efforts being made to prevent the spread of HIV/AIDS globally? What challenges are still faced in providing access to HIV/AIDS treatments and care in different regions of the world?What is the HIV/AIDS about?Part B: Credible Sources
Centers for Disease Control and Prevention (CDC.gov) World Health Organization (WHO.int)Citation:
CDC. Centers for Disease Control and Prevention. https://www.cdc.gov/.WHO. World Health Organization. https://www.who.int/.Part C: Notes
HIV/AIDS is caused by the Human Immunodeficiency Virus (HIV). HIV weakens the immune system, making it difficult for the body to fight off infections and diseases. Global HIV/AIDS statistics show that 38 million people are currently living with the virus. The majority of people with HIV/AIDS live in sub-Saharan Africa.Part D: Outline
I. Introduction
Definition of a pandemic Explanation of the ongoing global health crisis of AIDS Thesis statement: Despite advancements in treatments and care, AIDS continues to be a global health crisis and meets the definition of a pandemic.II. Body
A. Definition and Explanation of a Pandemic
Explanation of how AIDS meets the definition of a pandemic
B. The Life Cycle of HIV
Explanation of how HIV affects the body
Discussion of the genetic code of the virus
C. Global Prevalence of HIV/AIDS
Current infection rates of HIV across the globe
Discussion of where HIV/AIDS is most prevalent
D. HIV/AIDS Treatments and Access
Overview of available treatments
Discussion of access to treatments in different regions of the world
III. Conclusion
Recap of main points
Reiteration of thesis statement
Final thoughts on the ongoing global health crisis of AIDS
IV. Works Cited
List of authors and websites consulted, cited using MLA citation methods.
Learn more about HIV/AIDS at:
https://brainly.com/question/1686219
#SPJ1
Nearly all bacteria contain peptidoglycan. Review the structure of peptidoglycan by selecting the correct characteristics listed below. All bacteria use a peptide interbridge to connect the sugar strands Contains a tetrapeptide that extends from N-acetylglucosamine (NAG) Contains D-amino acids not found in proteins Peptidoglycan is a strong and rigid structure Polymer of alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)
The correct statements about the structure of peptidoglycan are: Contains D-amino acids not found in proteins; Polymer of alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM).
Peptidoglycan belongs to the category of polysaccharides consisting of sugar and amino acids linked together. It forms a very essential component of cell wall of the bacteria. The cross-links make the survival of bacteria possible.
D-amino acids are the stereo-amino acids that have their amino group towards the right side in configuration. The D- amino acids are particularly important for the physiology of microorganisms. The most commonly found amino acids are: D-alanine, D-glutamic acid and D-aspartic acid.
To know more about D-amino acids, here
brainly.com/question/28578775
#SPJ4
Please help!! What are some commonalities between baboon friendships and human friendships? What are some differences
Answer:
genetic similarity of 94%
heart disease is an example of a multifactorial illness. which of the following does not support this statement?
The statement that heart disease is an example of a multifactorial illness is supported by the fact that it is caused by a combination of genetic and environmental factors.
The statement does not support the idea that random error in the formation of ovum or sperm is the cause of heart disease, as this is not a factor in the development of the disease.
Additionally, certain medications can also reduce the risk of heart disease, and genetic testing can help identify individuals at a higher risk of developing the disease.
Complete questions:
Heart disease is an example of a multifactorial illness. Which of the following does not support this statement?
A)Random error in the formation of ovum or sperm causes heart disease
B)I will eat my meals on time and limit myself to one snack daily.
C)Clinical studies attempt to establish cause-and-effect relationships.
D)Focus on promoting health for older individuals.
Learn more about multifactorial illness:
https://brainly.com/question/28839307
#SPJ4
Metabolic pathways, such as those discussed in the introductory text, can be anabolic or catabolic. Drag the choices below to indicate whether each is primarily catabolic or anabolic.Drag and drop the items into the appropriate bins.- catabolic reaction
Gluconeogenesis is a catabolic reaction which involves the breakdown of tissues to produce glucose from non-carbohydrate sources.
Gluconeogenesis - Catabolic reactionGluconeogenesis is a catabolic reaction in which the breakdown of glycogen and other non-carbohydrate sources such as proteins and fats is utilized to produce glucose. This process is essential for maintaining proper blood glucose levels and for providing energy for cells and organs. Gluconeogenesis is a key pathway for maintaining glucose homeostasis and is responsible for the production of glucose from non-carbohydrate sources during times of fasting, extreme exercise, and illness. Without this process, our bodies would not be able to produce the energy they need to function properly.
Learn more about Gluconeogenesis: https://brainly.com/question/10579956
#SPJ4
What are ecosystem services?
Question 40 options:
a system of trade for nature products
services that are valuable only to humans
non-essential processes of nature
life-supporting ecological processes
Answer:
life supporting ecological processes
a bacterium that uses sunlight to oxidize lactic acid (electron source) when generating atp and obtains its carbon from co2 is a ____________
A bacterium that uses sunlight to oxidize lactic acid (electron source) when generating ATP and obtains its carbon from carbon dioxide is a photoautotroph.
Photoautotrophic bacteria are basically the bacteria which are able to trap the light energy and then convert it into chemical energy. They are able to make their own food like plants do. Photoautotrophic bacteria are also able perform oxygenic photosynthesis.
Cyanobacteria which are also commonly known as the blue green algae are examples oh photoautotrophic bacteria. These bacteria are also important to heterotrophs so they can obtain food. On the other hand the photosynthetic bacteria which are not able to use carbon dioxide as their direct source of carbon are known as photoheterotrophic.
To know more about photoautotroph here
https://brainly.com/question/1626622
#SPJ4
Which of the following is true regarding the layers of the Earth?
A)The innermost layer is under the greatest amount of pressure
B)The density increases from the innermost layer to the outermost layer.
C)The temperature decreases from the outermost layer to the innermost layer.
D)All of the layers are made of solid material
HELP PLEASE
'The density increases from the innermost layer to the outermost layer'. This statement is true regarding the layers of the Earth.
What do you mean by the Earth
The Earth is the third planet from the Sun in the Solar System. It is the only planet known to be inhabited by humans and is the only known planet to have an atmosphere capable of sustaining complex life. It has a rich geological history, a diverse range of ecosystems, and is home to millions of species.
The density of the Earth increases with depth, meaning that the density of the innermost layer is greater than the density of the outermost layer. This is due to the increasing pressure and temperature as one moves closer to the Earth's core. This increase in pressure and temperature causes the material in the Earth's layers to become increasingly more dense. This explains why the innermost layer is under the greatest amount of pressure.
Hence, option B is correct.
To know more about the Earth,
https://brainly.com/question/28163245
#SPJ1
In the P generation, a true breeding pea plant with genotype YYRR is crossed with a true breeding plant with genotype _____yyrrYyRrYR, Yr, yR, yrYR,yr
In the P generation, a true breeding pea plant with genotype YYRR is crossed with a true breeding plant with genotype yyrr.
Independent аssortment lаw estаblishes thаt the аlleles from two or more different genes distribute independently from eаch other in gаmetes. In other words, а gаmete receives аn аllele from а gene thаt does not depend on nor influence the аllele of аnother gene in the sаme gаmete. This cаn only be аpplied to independent genes.
1st Cross:
Parentals) YYRR x yyrr
Gametes) YR, YR, YR, YR
yr, yr, yr, yr
F1) 100% YyRr
2nd Cross:
Parentals) YyRr x YyRr
Gametes) YR, Yr, yR, yr
YR, Yr, yR, yr
Punnett square) YR Yr yR yr
YR YYRR YYRr YyRR YyRr
Yr YYRr YYrr YyRr Yyrr
yR YyRR YyRr yyRR yyRr
yr YyRr Yyrr yyRr yyrr
F2) Four possible phenotypes are expected,
9/16 Y-R-3/16 Y-rr3/16 yyR-1/16 yyrrFor more information about Independent аssortment lаw refers to the link: https://brainly.com/question/2733063
#SPJ4
Complete the statements to explain the cycling of water in Earth's atmosphere.
Water moves from lakes to the atmosphere by ___
:Condensation
:Evaporation
:Precipitation
Water moves from the atmosphere to the clouds by __
:Condensation
:Evaporation
:Precipitation
Water moves from the clouds to the ground by ___
:Condensation
:Evaporation
:Precipitation
use ruler to measure diameter of small(blue) circle. record in lab data
use ruler to measure diameter of medium(green) circle. record in lab data
use ruler to measure diameter of large(red) circle. record in lab data
convert each diameter to mm. record in lab data
The meter rule can be used to measure diameter.
How do you use the meter rule to measure diameter?We have to note that the meter rule is the kind of tool that we can use to measure length. It is important that we know that the length of the object is actually the difference between any two points that we have.
In this case the diameter is the distance between the two ends of the circle and we can be able to measure this value by the use of the meter rule.
In each case the meter rule is just placed across the image of the ball and two point on the opposite sides are marked off and the length reading is noted.
Learn more about diameter:https://brainly.com/question/5501950
#SPJ1
What was the relationship between Islamic thought and the Scientific Revolution?
Islamic patronage directly funded many scientific experiments in Western Europe.
Most of the leading thinkers of the Scientific Revolution held Islamic religious beliefs.
The Islamic Empire placed great value on learning, and later European scientists were able to build on the advancements of Islamic scholars.
As Europeans conquered Islamic territory, they captured classical Greek and Roman texts in the process.
The Islamic Empire placed great importance on learning, and later European scientists were able to draw on the progress of Islamic scholars. So, the correct option is C.
What is Scientific revolution?The Scientific Revolution was defined as the series of events that marked the emergence of modern science during the early modern period, when developments in mathematics, physics, astronomy, biology, and chemistry changed society's view of nature. changed his views.
The Islamic Empire placed great importance on learning, and later European scientists were able to draw on the progress of Islamic scholars to make connections between Islamic thought and the Scientific Revolution.
Therefore, the correct option is C.
Learn more about Scientific revolution, here:
https://brainly.com/question/18140730
#SPJ1
Use the information above to write a weather forecast for 8am, Friday May 8, 2020.
Date May 8, 2020
Predicted
Temperature
Predicted
Relative
Humidity
Predicted
Cloud Cover
Predicted
Precipitation
This is accomplished by checking at a substantial amount of observational data, such as surface observations, satellite images, radar, radiosonde, upper-air, wind profilers, aircraft observations, river gauges, and just gazing outdoors.
What is Weather Forecast?Utilizing science and technology to forecast the atmospheric conditions at a certain area and time is known as weather forecasting.
For millennia, people have made informal predictions about the weather, and since the 19th century, they have made formal ones and because you did not provide complete information about the data, a prediction cannot be made, but you have a better idea of how weather forecasting is done.
Read more about weather forecast here:
https://brainly.com/question/24730207
#SPJ1
Choose TWO of the following statements about adaptation. For each statement you chose, explain why that statement is true using evidence from the simulation.
Statement 1: Organisms with an advantageous trait are more likely to survive and reproduce.
Statement 2: Over time, the proportion of the population with the advantageous trait will increase.
Statement 3: If the environment changes, a different trait could be more advantageous.
Statement 1: Organisms with an advantageous trait are more likely to survive and reproduce.
Explanation: Adaptation is the process by which organisms change over time in response to changes in their environment.
Statement 2: Over time, the proportion of the population with the advantageous trait will increase.
Explanation: As mentioned in Statement 1, organisms with advantageous traits are more likely to survive and reproduce, leading to an increase in the proportion of the population with those traits.
What is right about adaptation?Organisms with traits that are advantageous in their environment are more likely to survive and reproduce, passing those traits on to the next generation. For example, if a population of plants is exposed to a change in temperature, those plants with traits that allow them to tolerate the new temperature will be more likely to survive and reproduce, increasing the proportion of the population with those advantageous traits over time.
The second is known as natural selection, which results in the survival of the fittest. Over time, the population will shift towards individuals with advantageous traits, leading to an increase in the proportion of the population with those traits. For example, in a population of birds, those with longer beaks may be better equipped to feed on a certain type of seed, leading to increased survival and reproduction of those birds, and eventually leading to a population where the majority of individuals have longer beaks.
Learn more on adaptation here: https://brainly.com/question/1213023
#SPJ1
Some types of gene are more highly conserved than others since their pathways or functions are fundamental to the growth and proliferation of all cells, including bacteria, and thus are likely to be highly conserved from species to species. For each gene functions, choose the one that is more likely to be highly conserved.
DNA replication
developmental pathways
hormone production
lipid synthesis for the plasma membrane
For each gene functions, the one thing that is most likely to be highly conserved is DNA replication.
Some types of genes are more highly conserved than others because their processes or activities are essential to the growth and proliferation of all cells, including bacteria, and are thus likely to be highly conserved across species. DNA replication is most likely preserved for each gene function.
The process of the duplication of the DNA strands in to two new strands is basically what we call as the DNA replication process. Replication is necessary because when a cell divides, the two new daughter cells must have the same genetic information, or DNA, as the parent cell.
To know more about DNA, visit,
https://brainly.com/question/21265857
#SPJ4
Which of the following agricultural practices is recommended because it can improve the environment? Multiple Choice Expanding farmland into forests and grasslands o O Applying irrigation water directly to the roots of crops o C) Using chemical methods to control crop pests o Raising more corn-fed beef and pork o
The following agricultural practices is recommended because it can improve environment : applying irrigation water directly to roots of crops.
What is the agricultural practices to improve environment?Planting variety of crops can have many benefits including healthier soil and improved pest control. Crop diversity practices include intercropping and complex multiyear crop rotations. When agricultural operations are sustainably managed, then they can preserve and restore critical habitats, help in protecting watersheds and improve soil health and water quality.
Pillars of Good Agricultural Practices are:- economic viability, environment sustainability, social acceptability and food safety and quality.
Practices in Sustainable Agriculture are Organic Farming, Agroforestry, Natural Farming and others.
To know more about agricultural practices, refer
https://brainly.com/question/30408297
#SPJ4
which of the following are required in order for natural selection to operate on a trait? select all that apply: -the trait does not have a genetic component -there is variation in the trait in the population -the trait affects the ability of the individual to reproduce -the trait can be passed down from parents to offspring -the population size must be large -there is no mutation in the trait
The following are required in order for natural selection to operate on a trait:
-there is variation in the trait in the population
-the trait affects the ability of the individual to reproduce
-the trait can be passed down from parents to offspring
What is trait?A phenotypic trait is an evident, observable, and quantifiable property of an organism; it is the visible expression of genes. A phenotypic characteristic is anything like a particular hair color or eye color. A trait is a genetically determined attribute or condition. It is the trait inherited from the parent by the offspring.
Here,
For natural selection to operate on a trait, there must be variation in the trait within a population, and the trait must affect an individual's ability to reproduce and be passed down from parents to offspring. Whether the trait has a genetic component or not, and whether the population size is large or not, is not a requirement for natural selection to operate on the trait.
However, mutation can play a role in generating new variation in a trait and can impact the operation of natural selection.
To know more about trait,
https://brainly.com/question/26772933
#SPJ4
hopper, chirp during mating season to attract females of t
near roadways chirp at higher frequencies than male grasshoppers whose habitats are away from the noise
hypothesis.
Complete the experimental procedure that allowed the scientists to test the hypothesis. Drag the steps into t
Experimental Procedure
Step 1
Step 2
Step 3
Step 4
Step 5
Collect 188 male Chorthippus biguttulus grasshoppers from habitats
near roadways and 188 from quiet habitats during mating season.
Steps
Place female grasshoppers near each
group of male grasshoppers.
Place all the male grasshoppers together in ond
The experimental procedure that allowed the scientists to test the hypothesis can be completed by recording the amount of mating which occurred as a result of the chirping sounds made by the males.
What is an Experiment?This is referred to as a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.
Since we are to discover if the chirping sound were responsible in helping the males find a mate then the mating frequency as a result of it being made should be recorded so as to draw out a conclusion.
Read more about Experiment here https://brainly.com/question/17274244
#SPJ1
A researcher studying the evolutionary relationship among five primate species obtained data from a sequence of mitochondrial DNA (mtDNA) from a representative individual of each species. The researcher then calculated the percent divergence in the sequences between each pair of primate species (Table 1).
(a) Based on fossil data, the researcher estimates that humans and their most closely related species in the data set diverged approximately seven million years ago. Using these data, calculate the rate of mtDNA percent divergence per million years between humans and their most closely related species in the data set. Round your answer to two decimal places.
(b) Using the data in the table, construct a cladogram on the template provided. Provide reasoning for the placement of gibbons as the out-group on the cladogram.
(c) On the cladogram, draw a circle around all of the species that are descended from the species indicated by the node within the square.
Gibbon
Please show all steps, this is a very confusing question, thanks
a. Using the data, the rate of mtDNA percent divergence per million years between humans and their most closely related species in the data set is 1.25.
b. A cladogram on the template provided:
HumanChimpanzeeGorillaOrangutanGibbonReasons for the placement of gibbons as the out-group on the cladogram:
Gibbon mtDNА is the leаst similаr (to аll of the other species)/most different (from аll of the other species). Gibbon mtDNА is the most divergent (from аll of the other species).c. On the cladogram, a circle around all of the species that are descended from the species indicated by the node within the square: Circle species 1, 2, and 3, as numbered from the top.
Determine the rаte of mtDNА percent divergence:
From the dаtа given the most closely relаted specie is Chimpаnzee (8.8 sequence difference).
Note: Given thаt this divergence took plаce seven million yeаrs from now
he rаte of mtDNА percent divergence per 1 millions yeаrs
= 8.8 / 7
= 1.25
Your question is incomplete, but most probably your full question can be seen in the Attachment.
For more information about mitochondrial DNA refers to the link:
https://brainly.com/question/28937546
#SPJ4
Energy can leave a system in which form?
Question 19 options:
matter
heat
biomass
nutrients
OPTION NUMBER 2) HEAT
HOPE IT HELPS
MARK AS BRAINLIEST
True/Falsewhen a plant fertilizes itself is there still genetic variation between the offspring and the parent
Yes, there can still be genetic variation between the offspring and the parent when a plant fertilizes itself.
This is because the plant can still undergo meiosis, which is a form of cell division that results in the production of four daughter cells, each of which have a different combination of genetic material from the parent. This can cause genetic variation between the offspring and the parent, even when the parent is self-fertilizing.
Meiosis is a type of cell division that creates daughter cells with half the number of chromosomes as the parent cell. In plants, meiosis occurs in the anthers and ovary, which are the male and female reproductive organs, respectively. During meiosis, genetic material from the parent cell is recombined and shuffled, which results in the production of four daughter cells that can have different combinations of genetic material from the parent.
Learn more about plant fertilization:
https://brainly.com/question/24932206
#SPJ4
A negative result of fertilizers in a pond is the production of algae blooms.
True or false?
A negative result of fertilizers in a pond is the production of algae blooms is a true statement, because it increases excess nutrients from fertilizer.
How algae blooms developed?Algal blooms, which can be very pronounced, are brought on by an excess of nutrients from fertilizer, wastewater, and stormwater runoff, which also happens to coincide with a lot of sunlight, warm temperatures, and shallow, slowly moving water.
Algae blooms can happen when several favorable environmental factors allow for a lot of algal growth.
Therefore, it is a true statement.
Learn more about algae, here:
https://brainly.com/question/10702000
#SPJ1
▼
Part A
Prokaryotic cell walls function
as a site of metabolic reactions (photosynthesis and cellular respiration).
to promote flexibility and formation of pseudopodia.
to prevent the cell from bursting in a hypotonic environment.
to propel cells (locomotion).
Answer:
Part A
Prokaryotic cell walls function to prevent the cell from bursting in a hypotonic environment.
Each person's cells have a genetically unique surface coating of carbohydrate called the ________. This enables the immune system to distinguish between the body's own cells and foreign cells.
Each person's cells have a genetically unique surface coating of carbohydrate called the HLA (Human Leukocyte Antigen) system. This enables the immune system to distinguish between the body's own cells and foreign cells.
What is cell?In biology, the smallest unit that can exist on its own and is made up of all living creatures and bodily tissues. A cell is made up of three major components: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and regulates the molecules that enter and exit the cell. "A cell is described as the smallest, most fundamental element of life, responsible for all of life's operations." All living things have cells that serve as structural, functional, and biological units. A cell may duplicate itself on its own. As a result, they are referred to as the building blocks of life.
Here,
The HLA system helps the immune system recognize cells that are not normally present in the body, such as bacteria and viruses, and mount an immune response to fight these invaders.
To know more about cell,
https://brainly.com/question/19138651
#SPJ4
4. Which order below correctly represents reproductive events occurring in plants?
a. diploid cells undergo meiosis, haploid gametes fuse, diploid zygote undergoes mitosis
b. diploid cells undergo meiosis, haploid cells undergo mitosis, haploid gametes fuse, diploid zygote
undergoes mitosis
c. haploid cells fuse, diploid zygote undergoes meiosis, haploid meiotic products undergo mitosis
Answer:
haploid cells fuse diploid zygote undergoes meiosis haploid meiotic products undergo mitosis