Approximately 4.5% of the Earth's surface is covered in ice, including glaciers, ice caps, and the polar ice sheets. This is a significant amount and has a major impact on the planet's climate and ecosystems.
What parts of the world have ice?Ice is primarily found in the polar regions of the Earth, such as the Arctic and Antarctica, and on mountains, including the Himalayas, the Rocky Mountains, and the Andes.
Some regions with colder climates, such as Greenland, Scandinavia, and Russia, also have ice and glaciers. In general, ice can be found anywhere where temperatures remain below freezing for a significant period of time.
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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.
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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."
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3. On hot, dry days the leaves of trees will close their stomata in order to conserve water and reacta,) occurrence of transpiration, a process in which water is lost from plant leaves through the stomata. V conditions are hot and dry for a prolonged period of time, drought occurs. During times of extreme drought, trees that are not adapted to living in drought conditions will often rapidly shed their leave biologist is curious to know how this phenomenon affects the tree's ability to perform photosynthe Which of the following is a testable question relating photosynthesis to this phenomenon that a bio could investigate with an experiment? a. Do extreme drought conditions cause trees to conserve energy by losing their leaves? b. Do extreme drought conditions cause trees to lose their leaves due to a lack of raw materia for photosynthesis? Does the loss of leaves due to extreme drought cause trees to perform photosynthesis in c of the tree? d. Does the loss of leaves due to extreme drought cause the trees to perform cell respiratior photosynthesis?
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
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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.
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nucleophilic addition of a carbonyl group under basic conditions takes place with which of the following?a. protonation of the carbonyl oxygenb. formation of a carbanionc. formation of an alkoxide iond. protonation of the carbonyl carbon
The nucleophilic addition of a carbonyl group under basic conditions takes place with the formation of a carbanion. The correct answer is B.
A carbonyl group consists of a carbon atom double-bonded to an oxygen atom, and it is a common functional group in organic chemistry. When a carbonyl group is subjected to basic conditions, the carbonyl oxygen is deprotonated, forming a negatively charged species called a carbanion.
The carbanion is highly reactive and can act as a nucleophile, meaning that it can donate electrons to form a new bond. In the case of a carbonyl group, the carbanion attacks the carbonyl carbon, forming a new bond and resulting in the formation of a new molecule.
This reaction is known as nucleophilic addition to the carbonyl group, and it is a fundamental reaction in organic synthesis. The type of molecule formed depends on the nature of the nucleophile, and it can be a variety of compounds such as alcohols, amines, or even cyclic compounds.
In summary, the nucleophilic addition of a carbonyl group under basic conditions occurs due to the formation of a carbanion, which acts as a nucleophile and attacks the carbonyl carbon, leading to the formation of a new molecule.
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For each function listed, name one type of epithelium and an organ that provides for that function. Function 1: Protection Stretfied Squemous epitheliom the epidemis of the skin Function 2: Diffusion Simpie Squamous epitnetium lining of the hear Function 3: Secretion 5gudostretiied columner epithelium, the trechea Function 4 Fitration Simpie sauemoos epithetiom, kidnay glomervi Function 5: Absorption Simple columnar epitnelium the diaestive rec Istomech to rectom
Function 1: Stratified Squamous epithelium, Function 2 : Simple Squamous, Function 3: Glandular columnar epithelium, Function 4: Simple Squamous epithelium, Function 5: Simple Columnar epithelium.
Epithelium is a kind of tissue that lines the surfaces of organs and designs in the body. There are a few sorts of epithelium, each with a particular capability. For instance, Delineated Squamous epithelium gives security as it lines the skin (epidermis). Straightforward Squamous epithelium performs dispersion, as found in the lungs (alveoli). Glandular columnar epithelium is answerable for discharge, as found in the stomach. Straightforward Squamous epithelium additionally works in filtration, as found in the kidneys (glomerulus). Basic Columnar epithelium performs retention, as found in the digestive organs from the duodenum to the rectum. Every one of these epithelial tissues assume a urgent part in keeping up with the wellbeing and legitimate working of the organs they line.
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Can the size of a supercoiled plasmid DNA be determined by using standard DNA size fragment electrophoresed in parallel? Please explain why or why not?
Answer:
No, not at all. The standard DNA and the plasmid have different conformations. DNA is separated using agarose gel electrophoresis based on its size and form. Because super coiled plasmid DNA
Explanation:
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.
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Activity In this activity, you will compare the volume of a cube with the volume of a pyramid that has the same base and height as the cube to find how the volumes are related. Go to volume of a cube and volume of a pyramid, and complete each step below. Question 1 Drag the orange point on the cube to change its side length. Then set the base of the pyramid to the same dimensions as a face on the cube. Also set the height of the pyramid to the same side length as the cube. Note the volumes of the cube and the pyramid. Record the volumes for a few sets of heights and bases, and then calculate the ratio of the volumes. Be sure the dimensions for the cube and the pyramid are the same in each set. (You might see some discrepancies in the tool due to rounding of decimals.) Round your calculations for the ratio to the hundredths place. The first one has been done for you.
Explanation:
Set 1:
Cube Side Length: 4
Cube Volume: 64
Pyramid Base: 4
Pyramid Height: 4
Pyramid Volume: 32
Ratio: 64:32 = 2:1
Set 2:
Cube Side Length: 6
Cube Volume: 216
Pyramid Base: 6
Pyramid Height: 6
Pyramid Volume: 108
Ratio: 216:108 = 2:1
Set 3:
Cube Side Length: 8
Cube Volume: 512
Pyramid Base: 8
Pyramid Height: 8
Pyramid Volume: 256
Ratio: 512:256 = 2:1
▼
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.
After Darwin in Biology
Answer:
Since the publication of Charles Darwin's On the Origin of Species in 1859, biological research has been dominated by evolutionary theory. This has led to a better understanding of how species change over time and how species interact with one another and with their environment. It has also led to an increased focus on conservation biology, which seeks to protect threatened species and manage healthy ecosystems. Research has also looked at the genetic basis of evolution and how organisms adapt to their environment. Areas such as molecular biology, genetics, and epigenetics have all been impacted by Darwin's work and have led to a better understanding of how organisms work and how they evolve.
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.
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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.
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what 2 traits do you think hold a very large survival advantage for an animal? why?
Answer:What are 3 traits of animals?
Explanation:
All animals are heterotrophs. Animals have sensory organs, the ability to move, and internal digestion. They also have sexual reproduction.
Is there more sediment or igneous rock on Venus? Please answer fast I need it for class tomorrow
There is more quantity of igneous rocks are present on Planet Venus.
What type of rock covers most of Venus?The data from Venera 13 and 14 landers indicates that the surface of Venus is made up of basaltic rocks similar in composition to those rocks that are found on Earth.
Venus is made up of an iron core and a rocky mantle that is similar to the composition of Earth. Its atmosphere is made up of carbon dioxide (96%) and nitrogen (3%) with small amounts of different gases.
Igneous rocks dominate Venus and Mercury because water is the main force for the creation of sedimentary rocks, and those planets are also dry. Mars alone has sedimentary rocks that are similar to those on Earth.
So we can conclude that more igneous rocks are present on Venus
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Which of the following correctly states two sister taxa and the basal taxon of the tree depicted below?A) Taxon A and B are sister taxa, and taxon A is the basal taxonB) Taxon B and C are sister taxa, and taxon A is the basal taxonC) Taxon D and E are sister taxa, and taxon F is the basal taxonD) Taxon C and D are sister taxa, and taxon A is the basal taxonE) Taxon A and D are sister taxa, and taxon F is the basal taxon
Sister taxa are two taxonomic groups that share a common ancestor, while the basal taxon is the most ancestral taxonomic group from which all other taxonomic groups are derived.
Sister taxa are two closely related taxonomic groups that share a common ancestor. This common ancestor is the basal taxon, which is the most ancestral taxonomic group from which all other taxonomic groups are derived. Sister taxa form the basis of taxonomic classification systems and are often used to classify living organisms.
For example, two species of birds may be classified as sister taxa if they share a common ancestor species, and the common ancestor would be their basal taxon. Sister taxa and the basal taxon are important components of the classification of living organisms, as they provide insights into the evolutionary relationships between different species.
The answer is general, as no picture was provided. However, you may consider this answer from another source:
"Taxon D and E are sister taxa, and taxon F is the basal taxon." (C)
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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
In a testcross involving F1 dihybrid flies, more parental – type offspring were produced than the recombinant – type offspring. This indicates:
A. The two genes are located on two different chromosomes
B. Chromosomes failed to separate during meiosis
C. The two genes are linked and present on the same chromosome
D. Both of the characters are controlled by more than one gene
This demonstrates the relationship between the two genes and their shared chromosomes location.
What does a 50% recombination frequency between two genes mean?Given that the genes are present on the same chromosome but are far from one another, a 50% recombinant frequency suggests that more than one crossover may have taken place during each meiosis. They may also not be linked because they were on different chromosomes.
What causes related genes to be inherited together?Because they are more likely to be inherited together, linked genes are those that are physically close to one another on the same chromosome. During meiosis, chromosomes are recombined, resulting in gene exchanges between homologous chromosomes.
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what objective do you set your microscope to look through to get the following magnifications of your specimen?
To achieve different magnifications in a microscope, you need to set the objective lens to the desired magnification. Most microscopes have multiple objective lenses of different magnifications, usually 4x, 10x, 40x and 100x.
For low magnification observations, a 4x or 10x objective lens is suitable. The 10x objective provides a clear and wide field of view, making it ideal for locating and orienting the specimen.
For higher magnification observations, a 40x objective is often used. This magnification provides a more detailed view of the specimen, allowing you to see fine structures and details.
For even higher magnification observations, a 100x objective lens is available. This magnification provides the highest level of detail, and is typically used to observe very small structures and fine details.
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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.
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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.
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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.
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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
Protists are essential to the survivor of organism ranging from bacteria to mammals. How are protists important to the ecosystem?
Protists produce around one-half of the oxygen which is essential for life on the planet by the process of photosynthesis.
What is the importance of Protists?All protists make up a large part of the food chain. Humans use protists for many reasons for example many protists are commonly used in medical research. For example, medicines made from protists are used in the treatment of high blood pressure, digestion problems, ulcers, and arthritis.
Some protists are used in scientific studies. For example, slime molds including D. disodium, a protist whose habitat is soil are used to figure out the chemical signals in cells.
Protists are important for the dairy industry. For example, if we observe the back of a milk carton we will notice carrageenan which is a protist that is extracted from red algae. It is used to make puddings and ice cream solid. Chemicals from some other kinds of protists that as algae are used to make many types of plastics.
Protists function at different levels of the ecological food web is as primary producers also as direct food sources and decomposers also many protists are parasites of plants and animals that can be fatal for humans and destroy valuable crops.
So we can conclude that about one-half of the oxygen which is essential for life on the planet is produced by Protists through photosynthesis.
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which of the following is not one of the core principles of anatomy and physiology introduced in this textbook?
Reflexes are not among the fundamental concepts of anatomy and physiology covered in this textbook.
Which of the following doesn't count as one of the body's four primary components?The four most prevalent elements are nitrogen, oxygen, carbon, and hydrogen. They make up 99% of the mass of living things, together with calcium and phosphorus.
What are the body's four primary components?The four most common elements in your body—hydrogen, oxygen, carbon, and nitrogen—make up more than 99 percent of all the atoms. They are all present in your body, mostly as water but also as components of biomolecules including proteins, lipids, DNA, and carbohydrates.
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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.
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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.
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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
seo-yun is one of four children. her mother is short, and her father is tall. in all likelihood, when they are grown, seo-yun and her siblings will have heights _______ .
Seo-yun and her siblings will have heights in an intermediate range between the heights of the parents.
Thus, the correct option is B (look at the complete options after Explanation)
Humаns come in а vаriety of heights аnd genetics plаy а key role in determining whether we will be short or tаll. There’s much more thаn just heredity to consider before аssuming а person will аutomаticаlly be the sаme height аs their pаrents. Medicаl conditions, hormonаl deficiencies, аnd more cаn аll contribute to how tаll we аre
Аs а generаl rule of thumb, our height cаn be predicted bаsed on how tаll our pаrents аre. If they аre tаll or short, then our own height is sаid to end up somewhere bаsed on the аverаge heights between our two pаrents.
Your question is incomplete, but most probably your options were
A. like her mother.
B. in an intermediate range between the heights of the parents.
C. like her father.
D. all precisely in the middle between her mother’s height and her father’s height.
Thus, B is the correct answer.
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