All of the following are adaptations of sea snakes to a marine existence except:

a. trachea acting as accessory lung.
b. gas exchange across their skin.
c. oviparous reproduction.
d. lower metabolic rate during submergence.
e. flattened paddle tail.


C

Biology & Microbiology

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An example of a filter feeder is:

a. a mussel. b. a sea star. c. a crab. d. a nematode. e. an isopod.

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The jellylike substance that fills the chamber behind the lens is

a. the vitreous humor. b. the aqueous humor. c. blood. d. a solution rich in glucose. e. the enzymes for proper function.

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Which stage of mitosis is characterized by the disintegration of mitotic spindles and the formation of two new nuclear membranes?

A. Anaphase B. Telophase C. Metaphase D. Prophase

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If interference is complete, what would be the frequency of double crossovers?

A) 0.75 B) 2 C) 0.25 D) 0 E) 1

Biology & Microbiology