Which of the macromolecules below could be the structural parts of the cell, enzymes, or involved in cell movement or communication?
a. nucleic acids
b. proteins
c. lipids
d. carbohydrates
e. minerals
Ans: b. proteins
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Homologous structures are
A. structures of animals that appear to have evolved from different parts of their bodies. B. structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor. C. structures of animals that have the same appearances and functions but obviously no common ancestor. D. structures of animals that have different appearances and functions but different ancestors.
A phosphorus shortage in soil would make it difficult for plants to produce:
A. DNA B. starch C. amylose D. cellulose Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about molecules that contain phosphorus? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
Prey reduce their risk of predation through physical and behavioral defenses. Which of the following is NOT a physical defense for the reduction of predation?
a) the camouflage of a praying mantis b) the spiciness of a jalapeno pepper c) the warning coloration of a monarch butterfly d) the alarm call of a Belding's ground squirrel e) the armor of an armadillo
diverticulitis
What will be an ideal response?