Which of the following is a characteristic of octopuses and squid?
a. an open circulatory system
b. a closed circulatory system
c. the presence of mesohyl
d. a single heart
b. a closed circulatory system
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Saprophytic fungi are able to digest organic molecules outside of the organism by means of:
A) apoenzymes. B) coenzymes. C) endoenzymes. D) exoenzymes.
Which of the following would be considered a macromolecule?
A. CO2 B. ammonia C. egg protein D. hydrochloric acid
Mycorrhizae help plants obtain water from the soil
Indicate whether the statement is true or false
Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate 2. shared metabolic pathways 3. Feedback inhibition can help regulate rates of reactions 4. both types of reactions are necessary but do not occur simultaneously
A) 1 only B) 1, 2, 3 C) 1, 2, 3, 4 D) 2, 4 E) 2, 3, 4