View the step-by-step solution to:

Question

the hypothesis I provided was Hypothesis 2. Explain and answer number 5

src="/qa/attachment/10700272/" alt="question.jpg" />hypothesis.jpgecomorphs.jpgislands.jpg

ecomorphs.jpg

hypothesis.jpg

Hypothesis 1: Each ecomorph evolved once and migrated across the narrow channels and spread to the other
islands. Or perhaps the islands were contiguous in the past [due to low sea level} when the ecomorphs first
evolved and then islands subsequently became separated [rise in sea level). You would expect {predict} that
species belonging to each ecomorph would be more closely related to each other than to species belonging to
other ectomorphs. Hypothesis 2: The ecomorphs evolved repeatedly and independently on each ofthe islands and thus are
examples of convergent evolution {different groups of organisms independently evolve similar traits by
adapting to similar environments or ecological niches} You would expect {predict} the anoles on each island to
be more closely related to one another than they would be to species on other islands.

islands.jpg

question.jpg

4. Now review the two hypotheses discussed earlier. Hypothesis 1 is that each ecomorph evolved once, and
the species belonging to the same ecomorph are closely related to one another. Hypothesis 2 is that
the ecomorphs evolved repeatedly and independently on each of the islands. Which hypothesis is
supported by the DNA analysis shown in the tree? Justify your answer and explain your reasoning. 5. Examine the relationship between Anofis sheplani and Anoiis ongusticeps. Does it obey the hypothesis you
provided in the question above? Explain your answer. Develop a possible hypothesis that could explain
this relationship. 6. Use the trees colored by geography {3.) and ecomorph {b.] to infer how many times each island was
colonized by ancestral lizards and how many times each ectomorph evolved.

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes