1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sunny_sXe [5.5K]
3 years ago
13

What do fossils give clues about? 3 Clues

Biology
1 answer:
Slav-nsk [51]3 years ago
4 0
Anatomical structure, possible diet, and reproduction evidence.
You might be interested in
PLEASE HELP IM DESPERATE
Furkat [3]

Answer:

8. D

9. A

10. A

11. C

12. D

Explanation:

8. Natural selection works on variation that exists in the genes of organisms. Antelopes who have genetic variation that makes their legs more muscular are at an advantage because they can outrun predators. This increases the chance that they will reach reproductive age, and be able to pass this advantageous trait onto their offspring. Over time, this selection pressure makes the variant more common in a population.

9. Beneficial traits are those that give a selective advantage. This could be one that helps it outrun predators (like above), avoid illness and death, gives it a reproductive advantage (i.e. more attractive to mates), or makes it better able to digest certain foods, for example. The formation of cancer cells would be harmful for an organism, reducing its fitness and perhaps leading to death. The inability to reproduce would mean genetic info is not passed on to the next generation, and stopping the production of an essential protein would likely lead to death. However, resistance to a virus would help an organism avoid illness and death, improving fitness.

10. Genotypes are what organisms inherit from their parents, i.e. the genetic information that is passed on. However, the way in which different alleles interact and are expressed is the phenotype. If we take the above example, natural selection is acting on the phenotype of muscular legs. If an antelope had the muscular leg genotype but for some reason it was not being expressed (maybe another gene is interfering with it), then the antelope would not have a selective advantage, and natural selection could not be act on the trait.

11. A trait that better suits an organism to its environment will be selected for by natural selection. This is because that organism is more likely to survive due to the trait, giving it a selective advantage. Therefore, if a mutation arose making the giraffe more adapted to the environment, it would be positively selected for, and through evolution would become more common.

12. This is an example of selective breeding, which has been happening for generations. Farmers spot desirable traits, and cross horses with these traits in an attempt to enhance the trait or to ensure it is passed on to the next generation. This is not natural selection, because farmers are making it happen artificially. It is not cloning or recombinant DNA, which are terms scientists use for actually manipulating the DNA in the lab.

3 0
3 years ago
Please Help I Don't Understand
Aneli [31]

<em><u>ANSWER:</u></em><em><u> </u></em>

<em><u>The </u></em><em><u>ans </u></em><em><u>is </u></em><em><u>true!</u></em>

4 0
1 year ago
Read 2 more answers
What makes leaves look green?
Allushta [10]

Answer:

It will be C( Magnesium absorbs red and blue light but reflects green light)

4 0
3 years ago
Read 2 more answers
Describe the effect that sickle cell anemia has on the sedimentation rate (sample 3. why do you think that it has this effect?
Eva8 [605]
Sickle cell anemia is a genetic condition that distorts the shape of the hemoglobin. This reduces the capacity of the red blood cells to carry oxygen. Another effect is that the distorted red blood cells come together forming a heavy and compact collection of cells that can block the flow of blood. The sedimentation rate is increased by sickle cell anemia.
3 0
3 years ago
What scientific hypothesis could be used to support the theory that Wood Thrush decreases are not due to deforestation? could it
bulgar [2K]

Answer:

A scientific hypothesis can be described as a tentative statement which can either proved to be right or wrong through the support of the experiments being performed.

The possible hypothesis for the theory that Wood Thrush decreases are not due to deforestation can be as follows:

<em>'If the population of the Wood Thrush is not affected by deforestation, then the population of the Wood Thrush will remain the same when deforestation occurs in a particular area.' </em>

3 0
3 years ago
Other questions:
  • What is the main function of nucleic acids ansers.com?
    12·1 answer
  • Cross a heterozygous right-handed dad and a left-handed mom. What percent of left-handed kids would you expect?
    6·1 answer
  • Explain the adaptive value of a larger body size at high altitudes.
    9·2 answers
  • Plants and animals die without air. Why? Which gases do plants and animals inhale and exhale? What are the role of these gases i
    8·1 answer
  • Which of the following is a disadvantage to the coal-to-liquid production of synthetic fuels
    9·1 answer
  • I need help labeling please help
    7·1 answer
  • What interaction between the atmosphere and the hydrosphere causes most current​
    11·1 answer
  • Eras are divided into periods, which can be further divided into___?
    13·1 answer
  • ¿Cual es el formato y tamaño de las celulas?
    10·1 answer
  • What is a process by which the best adapted organisms survive?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!