The number of animal phyla now recognized is about

A. 17.
B. 67.
C. 10.
D. 35.
E. 56.


Answer: D

Biology & Microbiology

You might also like to view...

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.

Biology & Microbiology

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

Biology & Microbiology

Briefly describe the ecology and trophic abundance of the Southern Ocean

What will be an ideal response?

Biology & Microbiology

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

Biology & Microbiology