Depending on their environments, animals may gain electrolytes (select all correct choices):

A. from food.
B. from water.
C. across gills and skin.
D. through cellular respiration.
E. from exposure to ultraviolet light.


A,B,C

Biology & Microbiology

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Gymnosome pteropods are primarily

a. herbivores. b. carnivores. c. detritovores. d. omnivores. e. filter feeders.

Biology & Microbiology

Closely related or similar species are grouped into a single:a

class. b. phylum. c. order. d. genus e. family.

Biology & Microbiology

Anthers produce

a. ovules. b. seeds. c. megaspores. d. nectar. e. none of these.

Biology & Microbiology

Which of the following is a multicellular mass that nourishes the embryo until it becomes a self-supporting seedling?

A) the endosperm B) a seed coat C) a fruit D) a cotyledon

Biology & Microbiology