?
?
Figure 36.3
Use the figure above to answer the following question.
A fish circulatory system is indicated by the letter (s) ____.
A. A only
B. B only
C. C only
D. both A and B
E. both B and C
Answer: A
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What statement best summarizes the evolutionary history of eyes?
A. Development of light-sensing organs evolved once, but several eye structures evolved separately. B. Eyes evolved once and were slightly modified in different phyla. C. Eyes evolved separately in each phylum from an ancestor with no ability to detect light. D. Light-detection organs can develop with very little developmental constraint. 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 eyes? What other information is related to the question? Choose Answer Given what you now know, what information 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?
Which of the following eukaryotes typically have cell walls? (Check all that apply.)
A. Fungi B. Plants C. Protozoa D. Algae E. Animals
Depletion of a resource by one species, which lowers the availability of that resource to other species, is an example of:
A. niche divergence. B. direct competition. C. indirect competition . D. predation. E. parasitism.
When we speculate about the origin of life from inorganic material it seems logical that several events or steps were necessary. Which of the following is not a part of these ideas?
A. Organic molecules must first be formed from inorganic molecules. B. Basic organic molecules form RNA that can serve as the genetic material and catalyze other reactions. C. RNA becomes self-replicating. D. The inorganic molecules must be collected together and segregated from other molecules by a membrane.