The nearest living relatives of crocodiles and alligators are

A. snakes.
B. birds.
C. turtles.
D. lizards.
E. manatees.


B. birds.

Biology & Microbiology

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The influenza viral envelope is unique because it contains only one type of protein

Indicate whether the statement is true or false.

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Genetic variations that confer no apparent selective advantage or disadvantage in a particular environment are said to be selectively ____

a. random b. deleterious c. neutral d. benign e. stabilizing

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A total of ______ codons code for ______ commonly occurring amino acids.

a. 20; 64 b. 64; 20 c. 4; 20 d. 20; 4

Biology & Microbiology

UV light _____ folic acid.

A. increases the body's production of B. destroys C. contains D. has no effect on E. produces

Biology & Microbiology