Question

Saved

Which of the following is a piece of empirical evidence supporting evolution?

Question 1 options:

Mycology


Progression of traits


Asexual reproduction


Biogeography

Question 2 (5 points)
Saved
What were the focus point of the finches that allowed Darwin to observe significant variations?

Question 2 options:

Feathers


Eyes


Beaks


Claws

Question 3 (5 points)
What happens to a population when it's larger than the available resources can accommodate?

Question 3 options:

The environment will produce more nutrients and resources to support the population.


All of the organisms in that population will die.


The organisms who need fewer nutrients will support the organisms who need more.


The organisms not well suited for that environment won't survive.

Question 4 (5 points)
Which of the following terms means that the organisms are structurally and functionally related?

Question 4 options:

Homologous


Analogous


Archaic


Vestigial

Question 5 (5 points)
What did the peppered moths signify in evolution?

Question 5 options:

Organisms are constantly changing, but they're only driven by internal changes.


Environmental factors can change which organism is best suited for survival.


The environment always has a detrimental effect on organisms.


Human behavior is the main driver behind artificial selection.

Question 6 (5 points)
A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolution?

Question 6 options:

The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.


The fossil record shows that there are large splits in the development of new species, supporting macroevolution.


The fossil record shows that multiple species of whales have converged into one species because of best fit.


The fossil record captures every change in a species that leads to a new species.

Question 7 (5 points)
An organism has the allele frequency of a = 0.4 and b = 0.3. What's the frequency for allele c?

Question 7 options:

c = 0.3


c = 1.0


c = 0.0


c = 0.4

Question 8 (5 points)
Which of the following is/are not a condition affecting the Hardy-Weinberg equilibrium?

Question 8 options:

Genetic drift


Natural selection


Mutation


Recessive traits

Question 9 (5 points)
How do mutations occur?

Question 9 options:

Mutations occur through a negative change within that organism's DNA.


Mutations occur through the intentional alteration of amino acids.


Mutations occur randomly through changes in DNA.


Mutations occur as directed responses to changes in the environment.

Question 10 (5 points)
In polygenic traits, when the bell curve distribution of traits moves to one end of the curve because of a preference for best fit of that trait, what's this shift called?

Question 10 options:

Disruptive selection


Stabilizing selection


Directional selection


Nonjunction selection

Answer 1

1. Biogeography

2. Beaks

3. The organisms not well suited for that environment won't survive

4. Homologous

5. environmental factors can change which organism is best suited for survival

6. the fossil record shows that the structure of the whale is changing over time which is a requirement of evolution

7. c=0.3

8. recessive traits

9. mutations occur randomly through changes in DNA

10. directional selection

11. the name must include the genus and species of the new organism. it must be written in italics with the species name in lowercase.

12. a clade is a monophyletic grou[ing in which all the organisms stem from the same branching point

13. molecular systematics

14. it focuses on simple and obvious connections

15. Plantae, protista, and fungi

16. we don't have every organism that existed identified in the fossil record

17. Mass extinction

18. Hadean

19. Punctuated equilibrium

20. Endosymbiotic theory

21. Cell receptor

22. Attachment, entry, replication, copies made, exit

23. Lytic

24. Viruses and prokaryotes both adapt in response to their environments

25. Membrane-bound organelles

26. Liquid

27. they don't exhibit cell specialization

28. Plasmodium protist

29. Spores

30. Mycotoxicosis

from Penn Foster

Answer 2

1. Biogeography

2. Beaks

3. The organisms not well suited for that environment won't survive.

4. Homologous

5. Environmental factors can change which organism is best suited for survival.

6. The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.

7. 0.03

8. Recessive traits

9. Mutations occur randomly through changes in DNA.

10. Directional selection

Step-by-step explanation:

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