Refer to Figure 31-3. The structures labeled 1 are used for:A

feeding.

B. reproduction.

C. attachment.

D. movement.

E. protection.


C

Biology & Microbiology

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Considering the traditional view of ecological

succession, which of the following plants would most likely be a pioneer species in a primary succession event?

a. an oak tree that produces acorns dispersed by squirrels b. a snapdragon flower pollinated by bees c. a dandelion which produces seeds asexually and disperses seeds by the wind d. it could be any of these e. it couldn’t be any of these

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Which group of vertebrates will lack a pulmonary circuit?

A. fish B. annelids C. frogs D. birds E. mammals

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When comparing dry heat and moist heat sterilization, dry heat is

A. equally as fast. B. slower. C. faster. D. sometimes faster but sometimes slower.

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Afferent and efferent neurons differ in (select all correct choices):

A. their size. B. their pattern of myelation. C. the directionality of the information they send.

Biology & Microbiology