The number of animal phyla now recognized is about
A. 17.
B. 67.
C. 10.
D. 35.
E. 56.
Answer: D
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Which of the following is not true of the enzyme-substrate interaction?
A) Many enzymes are extremely specific regarding a substrate. B) Many enzymes cannot recognize a stereoisomer of their substrate. C) Some enzymes accept any of a whole group of substrates. D) Carboxypeptidase recognizes any of the amino acids from the carboxyl end of a polypeptide. E) Cells are often able to carry out metabolic activity with only a handful of enzymes.
Which of the following symptoms of trichinosis is most indicative of this disease?
A. Shortness of breath B. Eosinophilia C. Puffiness around the eyes D. Abdominal pain
Briefly describe the ecology and trophic abundance of the Southern Ocean
What will be an ideal response?
Four of the five choices listed below can be used to
describe fungal life. Select the exception. a. heterotrophic b. saprobic c. parasitic d. decomposer e. autotrophic