The virus originally used for vaccination against smallpox is named

A. vaccinia.
B. cowpox.
C. rubella.
D. herpes.


B

Biology & Microbiology

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How many different types of chemoreceptors can be found in the taste buds?

A. hundreds B. thousands C. 40-50 D. five

Biology & Microbiology

Plant tissue that functions in carrying organic compounds from the site of photosynthesis to other parts of the plant fall under which category?

a. xylem b. dermal c. phloem d. meristem

Biology & Microbiology

The idea that evolution proceeds with long periods of stasis with relatively brief bursts of fast evolutionary change is called

A. catastrophism. B. temporal equilibrium. C. gradualism. D. punctuated equilibrium. E. temporal isolation.

Biology & Microbiology

The term "operon" comes from the Latin root word for

A. gene. B. controller. C. structure. D. copy-producing. E. works.

Biology & Microbiology