The animal in Figure 21-2 represents:

a.

a mosasaur.

b. an ichthyosaur.

c. a pterosaur.

d. a thecodont.

e. a plesiosaur.


B

Biology & Microbiology

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Viruses ____________.

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When the diaphragm contracts, the thoracic cavity ________, and you ________

A) gets smaller; exhale B) gets larger; exhale C) gets larger; inhale D) gets smaller; inhale

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Many single-celled eukaryotes that normally exist in a haploid state reproduce asexually by:

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