Chapter 33 – Animal Diversity and the Evolution of Body Plans
Chapter 33
Animal Diversity and the Evolution of Body Plans
Multiple Choice Questions
1. Damage to its flagellum would prevent a choanocyte from
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about sponge morphology?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
• Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
2. Touching a jellyfish can be a very painful experience whereas touching a comb jelly is not
painful. Why is there a difference?
3. How could a biologist distinguish an acoel flatworm from a free living platyhelminth?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about acoel flatworms?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
4. A mixture of DNA fragments is amplified from a sample of ocean water. Which gene(s)
could be definitively categorized as originating from a species of animal?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about animal genes?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Check All That Apply Questions
5. Despite their seemingly simple anatomy and radial symmetry, ______ are a type of
deuterostome, and closely related to the chordates. (Check all that apply.)
Multiple Choice Questions
6. Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin
for worm). Is this a valid classification scheme?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about animal classification?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
7. Of the following features, which is the most widely shared in the animal kingdom?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about features of animals?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
8. A scientist is studying some developing eggs from an ocean sample. The early embryos
have divided only a few times, and all cells look identical. When the scientist carefully
removes half the cells from an embryo, both clumps of cells are able to complete
development, forming twins. The eggs can be identified as:
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about determinate and indeterminate development?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
9. Pseudocoelomate nematodes lack a body cavity.
10. A researcher is using molecular phylogenetic techniques to determine the evolutionary
relationships of a large set of animal species. Which type of species are most likely to have
been wrongly classified based on morphology alone?
Chapter 33 – Animal Diversity and the Evolution of Body Plans
Clarify Question
•
What is the key concept addressed by the question?
•
What type of thinking is required?
Gather Content
•
What do you already know about phylogenetic relationships?
Choose Answer
•
Given what you now know, what information and/or problem solving approach is most
likely to produce the correct answer?
Reflect on Process
•
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?