An ecosystem with higher levels of biodiversity is more stable than another with lower levels because they are better able to withstand stresses like disease or climate change.
What is biodiversity?The term biodiversity refers to all of the variations (both genetic and phenotypic) in a given population.
Biodiversity is a fundamental subject to maintaining the equilibrium (homeostasis) of the whole ecosystem.
Higher biodiversity allows populations to face environmental changes such as diseases or climate change.
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Find a picture or video regarding optical illusions and post a link. Describe what is happening in the eye or brain that creates that illusion!
Optical illusion occurs when our brain and eyes miscommunication with each other.
Why Optical illusions occur?Optical illusions happen when our brain and eyes speak to each other in simple language but the interpretation gets mixed-up. For example, our eyes told the brain that something is moving but that's not what the eyes meant to say to the brain which leads to the creation of illusion.
So we can conclude that Optical illusion occurs when our brain and eyes miscommunication with each other.
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Which of the following best supports the claim that organisms of different domains share a common ancestor?
(A) Photosynthesis occurs in chloroplasts, and the citric acid cycle occurs in mitochondria.
(B) Glycolysis occurs in both prokaryotic cells and eukaryotic cells.
(C) Introns are present in eukaryotic DNA but not in prokaryotic DNA.
(D) Errors in DNA synthesis provide some of the genetic variation in a population.
Suppose an individual has an incorrect number of chromosomes. Specifically, what must have happen? (Do NOT say non-disjunction….be more specific)
Explanation:
the person could have 22 pairs of chromosomes and one triplet of chromosomes resulting in them having 47 chromosomes altogether. This causes people to have down's syndrome
how blood clotting occurs
Answer:
Your answer would be:
A blood clot occurs when there is damage to a blood vessel.
Explanation:
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Answer:
Proteins in your blood called clotting factors signal each other to cause a rapid chain reaction. It ends with a dissolved substance in your blood turning into long strands of fibrin. These get tangled up with the platelets in the plug to create a net that traps even more platelets and cells.
Explanation:
hope this helps
!20POINTS!
Analyze the graph and identify some factors that may contribute to the rotifer population leveling off in the absence of water fleas. Explain your answer in 1–2 sentences.
Answer:
(Leveling off = it stays the same even though it had a increasing period) When looking at the end of the graph you can see that it came back to what it was, which means the rotifers are not increasing anymore. That's because of the carrying capacity (a species' average population size in a particular habitat), and the carrying capacity in this situation is the flask. Therefore the flask has limited space.
2. Discuss why a four chambered heart is more efficient than a two chambered heart in delivering oxygenated blood to the various body parts. What evolutionary changes in the lifestyles of organisms selected for the evolution of the four chambered heart?
As organisms became more active, a four-chambered heart was selected for because of its ability to separate oxygenated and deoxygenated blood.
Why is a four-chambered more efficient in oxygen delivery than a two-chambered heart?A four-chambered heart is a heart consisting of four chambers, namely;
upper ventricle lower ventricle upper atrium and lower atriumA four-chambered heart is more efficient in oxygen delivery than a two-chambered heart because it does not allow for mixing of oxygenated and deoxygenated blood.
A more active lifestyle by organisms and larger body size selected for a four-chambered heart in organisms.
Therefore, the efficiency of a four-chambered heart is in it's ability to separate oxygenated and deoxygenated blood.
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DNA STRUCTURE
Pls help me fill in the blank
Answer:
Overall Shape: Double Helix
Groups of Molecules Called: nucleotides
4 Nitrogenous Bases: Adenine-Thymine / Guanine-cytosine
Chargaff's rules: A=T, C=G
Backbone: Phosphate and deoxyribose sugar
Bonds: Hydrogen Bonds between base pairs
The Brain Stem ___.
A. regulates breathing and heart rate
B. helps with movement and balance
C. resides between the cerebrum and cerebellum
D. is the second largest brain part
Answer: Your best answer is A. regulates breathing and heart rate
Hope this helps!
how do forensic scientists recover writing from a burned document?
how both genetic and environmental factors can affect paint color variation in california rabbits
Answer:
Coat color in rabbits is inherited as a series of multiple alleles.
Explanation:
This means that there can be more than just 2 alleles for a single gene. In the case of coat color in rabbits, there are four alleles, and each one is expressed with a different phenotype.
The genetic factors that can affect paint color variation in California rabbits are based on the several different genes that are inherited from their parents. It includes color base, color density, pattern, an extension of dark pigment, spotting, silvering, etc.
What are the genes that are responsible for color variations?The genes that are responsible for color variations are as follows:
Gene A controls the pattern of the coat.Gene B controls the base of coat color.Gene D controls the density of the coat color.Apart from these direct genes, several other genes are also responsible for causing variations in paint color in Rabit. The effect of environmental factors remains the same for every species regardless of competition, and other limited resources. These environmental factors govern the alteration gradually over a long period of time to stimulate some observable responses in the organisms.
Therefore, the genetic and environmental factors that can affect paint color variation in California rabbits are well described above.
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Just answer number 3
Saliva flows out of the salivary glands into your mouth is it diffusion osmosis or neither
What would happen to the convection currents in the mantle if Earth's interior
cooled down? Why?
Answer:
If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead.
Explanation:
please mark me as brainlist
Answer:
If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead.
why is it beneficial for scientists to understand how other organisms are able to edit which proteins are created
Answer:
Genome editing technologies enable scientists to make changes to DNA, leading to changes in physical traits, like eye color, and disease risk
Explanation:
what age does tachycardia affects
Answer:
It between the ages of 25 and 40 years.
Explanation:
Fossil fuels store energy that is released when they are burned. What is the origin of the energy contained in fossil
fuels?
O the wind
O water
Oores
the Sun
Answer:
ores
Explanation:
This is digital data obtained from sensors carried in satellites. It includes collecting data in the
visible and non-visible portions of the electromagnetic spectrum.
Example: Landsat image
Term: Type term here
Satellite Imagery is a type of digital data obtained from sensors carried in artificially designed satellites.
What is Satellite Imagery?Satellite Imagery refers to the images that are obtained by using artificial satellites made by humans.
Satellite Imagery includes collecting data on both the visible and non-visible portions of the electromagnetic spectrum.
Satellite Imagery is fundamental for many applications in different disciplines such as, for example, agriculture.
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What is the process where one strain of bacteria is changed by another strain? A. Transformation B. Evolution C. Morphism D. Adaptation
Answer:
A. Transformation
Explanation:
In transformation, a bacterium takes up a piece of DNA floating in its environment. In transduction, DNA is accidentally moved from one bacterium to another by a virus. In conjugation, DNA is transferred between bacteria through a tube between cells.
Brown hair is dominant and blonde hair is recessive.
What percent of the offspring will have blonde hair if the parents have the following alleles?
BB
Bb
A. 75
B. 25
C. 50
D. 0
E. 100
Answer:
If we assume B = Brown and b= blonde, Phenotypically the percent of offspring having blonde hair is D. 0
Explanation:
Why is it necessary for organisms to eat food? In your answer, describe the process that goes
from food (for instance, a sandwich) to the molecules your cells need. Use your own words, and
be specific in your explanation (one paragraph). You should not need any resources besides
your lecture notes to answer this question
Answer:you to eat to get energy
Explanation:
The main reason you need to eat is to get energy. Food is your body's only supply of energy. However, this energy must be converted from the apple (or any other food you eat) into an energy source that your body can use.
How are genetically engineered bacteria used in medicine?
They destroy viruses in the body.
They are used to make memory B cells.
They make products to treat diseases.
They are the only way to make vaccines.
Genetically engineered bacteria are important in medicine as they make products to treat diseases.
What are genetically engineered organisms?Genetically engineered organisms are organisms whose genes have been engineered from the original form to new forms which are beneficial to man.
Genetically engineered organisms are produced by the process of genetic engineering
Genetically engineered bacteria are used in:
food industry medicine agricultureIn medicine, genetically engineered bacteria are used products to treat diseases such as insulin.
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Plant Structure and Function Lab
Title: Plant Structure and Function Lab
Objectives:
After doing this lab, you should be able to:
• Identify the correct plant tissues from the corresponding slides.
• Identify the different structures of a flower.
• Describe the functions of each flower structure.
• Describe the functions of each plant tissue.
• Answer the Analysis and Conclusion questions using multiple sentences.
Materials:
• Flower
• Scissors
• Tape
• Tweezers
• Lab Report
Procedure:
Plant Tissues – Part 1
Review each image in your lab activity slide show. Identify the correct tissue or organ below based on each individual slide. Several of these choices may be use multiple times.
• phloem
• stoma
• xylem
• guard cells
• dermal
• ground
• vascular
Slide 1_____Slide 2_____Slide 3______Slide 4_____Slide 5
a. xylem___a. guard cells_a. vascular__a. vascular___a. vascular
b. phloem__b. stoma____b. dermal___b. ground____b. ground
____________________c. ground___c. dermal_____c. dermal
____________________d. dermal_______________________.
Flower Dissection - Part 2
• Pick a flower from your yard, a public location, or somewhere in your neighborhood.
• Start by removing the sepals of the flower with a tweezer. If you do not have a tweezer, a small pair of scissors will also work. It may be easiest to do this if you hold the flower with your finger from below the pedicel (small stalk just underneath the flower) and begin to remove the sepals with a pair of tweezers.
• Using tweezers, place the sepals on the labelled printable worksheet, and tape them in place.
• Repeat the same procedure for the petals and pistil.
• Remove all but one of the stamens and tape them onto the worksheet.
• On your printable worksheet, you should have sepals, petals, stamens and one pistil.
• Take a picture of your worksheet with the flower pieces placed correctly, and save it on your computer. You will attach and submit this with your assessment questions.
Data: Flower Dissection
Name of Flower Component Piece of Flower from Lab Function
Sepal
Petals
Stamen
Pistil
Analysis and Conclusion - Part 3
Plant Tissues:
1. What are three characteristics that all species belonging to the plant kingdom have in common?
2. How will the numbers of stomata differ in tropical plants and desert plants? How does this help protect the health of a plant?
3. If a plant's xylem and phloem become damaged, what type of damage will result within the plant? Describe the different roles on the xylem and phloem in your answer.
4. Why do we compare the dermal tissue of plants to human skin? Explain your answer.
5. Would a plant be able to survive if the ground tissue was damaged? Explain your answer.
Flowering Reproduction:
1. Describe how flowering plants reproduce.
2. How do flowers help other organisms in our environment?
3. Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.
4. Describe what occurs during the process of seed development.
5. Based on your knowledge of flowers, why do you think most flowers are bright in color?
The plant is made up of root and shoot structures that contain parts that enable the plant to grow and manufacture its food.
The structure and function of plantsThe structure of plants is made up of tissues such as:
phloemstomaxylemguard cellsdermalground andvascular.The three characteristics that all species being to the plant kingdom have in common are:
They are non-motile,They make their food hence are called autographs; andTheir cell walls are made sturdy by a material called celluloseThe tropical plants have more stomata than the desert plants. This helps the desert plants to reduce water loss.
Some defects occur when there is damage to the vascular tissues such as the xylem( plant will not be able to transport water from the soil through roots to leaves) and phloem (nutrients produced during photosynthesis will not be able to reach every part of the plant body).
The dermal tissue of plants and the human skin performs protective roles to the underlying tissue organs.
A plant won't be able to survive because it won't absorb water and nutrients from the soil and transport it upwards to all the parts of the plant.
Flowering reproduction in plants takes place through the following steps:
Pollen is carried by insects or blown by the wind from one flower to another. This process is called pollination. Pollen reaches the new flower and travels to the ovary where it fertilises egg cells (ovules) to make seeds. This is fertilisation.Flowers benefit other organisms in our environment by creating more carbon dioxide-absorbing and oxygen-radiating plants.
The flowers contain male reproductive organs called stamens and female reproductive organs called pistils.
The process of seed development begins with double fertilization and involves the fusion of the egg and sperm nuclei into a zygote.
Most flowers are bright in color because they are like advertisement signs for pollinators.
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Which compounds are not soluble in water?
answer :
All salts of : carbonate, CO3 2- phosphate , PO4 3- oxalate, C2O4 2- chromate, CrO4 2-sulfide, S 2- most metal hydroxides and oxides (OH-)
Exceptions :
Salts of NH4 +, and the alkali metal cations
Answer:
All salts of : carbonate - phosphate - oxalate, chromate,- most metal hydroxides and oxides
Explanation:
Which of the following statements about the relationship between science and technology is NOT true? a. Science and technology are the same thing. b. Science is the study of the natural world to understand how it functions, while technology changes the natural world to meet human needs or solves problems. c. The work of scientists often makes new technologies possible. d. The development of new technologies often contributes to science. Please select the best answer from the choices provided A B C D
It would be A. Science and technology are the same thing.
The statement that is NOT true about the relationship between science and technology is A. Science and technology are the same things.
What are science and technology?Science refers to the systematic study of the structure and behavior of the physical and natural world. Science can also refer to the organized body of knowledge on a subject.
Science achieves this systematic study through:
ObservationsExperimentsEvidenceExplanations.The above scientific tools are collectively known as scientific inquiry.
On the other hand, technology is the application of gathered scientific knowledge to solve human problems or meet needs through the manipulation of the human environment.
However, science and technology continuously interact to develop each other.
Thus, it is NOT true that science and technology are the same things.
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explain the solution of deforestation... In points...
please help me it's for tomorrow presentation
Answer:
• government regulations
• convince framers to avoid deforestation
• avoiding single-use packaging, eating sustainable food,
•Ordinary people can help stop deforestation by eating less meat
Answer:
Government Regulations. ...Banning Clear-Cutting of Forests. ...Reforestation and Afforestation. ...Reduce Consumption of Paper. ...Educate Others. ...Eat Less Meat. ...Purchase from Sustainable, Forest-Friendly Companies. ...Reduce Consumption of Deforestation Prone Products.
Residents of an older building have children with a higher incidence of developmental delays. Which of the following is a possible cause of the developmental issues?
Old lead pipes are still used in the building.
Asbestos was not removed from the building.
The heating system is releasing carbon monoxide.
Pesticides were used in the building's landscaping.
Answer:
A
Explanation:
I took the test :)
Primitive lead pipes still in use in the construction may be the root of the building's developmental issues. So, the correct option is A.
What are Lead pipes?Long lead pipes are recognised as the main source of lead in drinking water, lead service lines are the pipes that transport water from the underground water main to homes.
Remember that lead has been used in water pipes for thousands of years. Ancient civilizations picked lead for piping because it could withstand tiny leaks and was pliable enough to form into efficient water-delivery designs.
The development problems with the building may be caused by the outdated lead pipes that are still being used in the construction.
Thus, the correct option is A.
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1. Give two reasons why preserving biodiversity is important to humans
Answer:
hope this Wil help
Explanation:
biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services
How do scientists test theories
Answer:
using data, preferably multiple types of data from multiple sources.
Explanation:
hope this helps
Going long does carbon dioxide last
Answer:
carbondioxide last in about 300 to a 1000 years in the atmosphere
Question 3
Which type of carbon is used in carbon dating?
C-14
C-13
C-12
C-11
Answer:
C-14
Explanation:
c-14 is used to identify spedciamen's age