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The presence of homologous structures in the forelimbs of a cat and a bat are supportive of:

A) divergent evolution.

B) common ancestory.

C) convergent evolution

D) A and B only.

E) B and C only.

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Jamar Ferry
Jamar FerryLv2
29 Sep 2019

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Related questions

An adaptation or adaptive trait is a trait/characteristic that has evolved in a population of organisms which provides a functional advantage. Adaptations increase the biological fitness of a population. Fitness is defined as the ability to survive and pass genes on to subsequent generations. For the purposes of this assignment, you are to choose an adaptive trait common to more than one species. For example, birds and bats both have wings. Write a 2-3 page (500 – 750 words, 12 point font) paper including the following elements. Be sure to compose your work with your own words. Do not copy and paste from any source. Describe what makes this trait an adaptation. Briefly describe how the trait evolved; e.g., mutation, genetic drift, migration and/or natural selection. Be sure to support your answer with evidence. What is the difference between homologous and analogous traits? How does your trait of choice fit either of these descriptions? What is convergent and divergent evolution? Describe whether the trait is a result of convergent or divergent evolution. Use in-text citation and provide source references for at least 3 sources. The textbook can be one source. When citing articles or other types of documents, follow standard guidelines as introduced on "Citing references in scientific research papers".

1. What prevailing views were directly challenged by the Principle of Uniformitarianism, first outlined by Charles Lyell in the Principles of Geology, which was published in 1830?

a. Earth is only a few thousand years old.

b. Species are fixed and unchanging.

c. Catastrophic events governed early Earth history and geologic processes operating in the past were fundamentally different from modern times.

d. A and C only

e. A, B and C

2.

Which of the following statements are consistent with both Lamarckian evolution and modern views of Darwinian evolution?

a. Use and disuse of body parts allows organisms to adapt to their environment

b. Characteristics acquired during the lifetime of an organism are transmitted to offspring.

c. Evolution is progressive and goal-oriented.

d. New species are the result of descent with modification.

e. Natural selection is a mechanism of evolutionary change.

3.

In the formula for determining a population’s genotype frequencies, the term 2pq is based on principles of Mendelian genetics, which demonstrate that

a. heterozygotes can be produced in two ways.

b. the population is doubling in number.

c. heterozygotes have two different alleles.

d. A and C only

e. A, B and C

Which of the following statements is true

[A] Evolution by natural selection "works" like an engineer, free to develop different designs.

[B] Nearly all evolutionary innovations are the result of modifications of previously existing mechanisms and structures.

[C] The genes that control development are highly conserved.

[D] Both a and b

[E] Both b and c

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