Exoskeletons are most characteristic of

a. Mollusca
b. Arthropoda
c. Nematoda
d. Chordata
e. Annelida


Answer: b

Biology & Microbiology

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The part of the human brain that controls the sleep-wake cycle is called the

A) nucleolus. B) cerebral cortex. C) suprachiasmatic nuclei. D) substantia nigra.

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Reptiles, including birds, belong to one major lineage of amniotes, and _____ belong to another

a. sharks c. mammals b. frogs and toads d. slamanders

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The maximum amount of air that can be moved in plus the maximum amount that can be moved out during a single breath is called the __________.

Fill in the blank(s) with the appropriate word(s).

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Serial dilution can be used in combination with pour plates as a method for isolating pure cultures.

Answer the following statement true (T) or false (F)

Biology & Microbiology