The motile feeding stage of protozoa is called the

A) Sporozoite
B) Food vacuole
C) Cyst
D) Trophozoite
E) Oocyst


D) Trophozoite

Biology & Microbiology

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Compare the first forms of photosynthesis to evolve with the form used by green plants today

What will be an ideal response?

Biology & Microbiology

An hypothesis currently getting a lot of

attention concerning the origin of biological molecules is that they originated a. in hot springs. b. near volcanoes. c. near hydrothermal oceanic vents. d. in salt lakes. e. in tidal pools.

Biology & Microbiology

_____ are angiosperms.

A. Fiddlehead ferns B. Sphagnum mosses C. Fir trees D. Roses

Biology & Microbiology

Bottlenose dolphins breathe air but can sleep in the ocean because _____

A) they sleep for only thirty minutes at a time, which is the maximum interval they can cease breathing B) they fill their swim bladder with air to keep their blowholes above the surface of the water while they sleep C) they move to shallow water to sleep, so they do not need to swim to keep their blowholes above the surface of the water D) they alternate which half of their brain is asleep and which half is awake

Biology & Microbiology