__________ and __________ are single-celled heterotrophs with a secreted shell. Fill in the blank(s) with the appropriate word(s)


ANSWER: Foraminiferans; radiolarians

Biology & Microbiology

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a. 1-2 b. 4-8 c. 10-15 d. 24-32 e. 36-47

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Variation in expressivity and penetrance of genes is due to the effects of other genes and the

environment. Indicate whether the statement is true or false.

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Epinephrine and norepinephrine secreted by the adrenal gland enhance the response of the parasympathetic nervous system

Indicate whether the statement is true or false

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ADH makes the walls of the collecting duct more permeable to water. Indicate whether the statement is true or false

Biology & Microbiology