Which term refers collectively to small, photosynthetic protists found in aquatic habitats?

a. phytoplankton
b. chrysophytes
c. zooplankton
d. phagoplankton


Ans: a. phytoplankton

Biology & Microbiology

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Epitokes of polychaetes are:

a. feeding structures. b. respiratory structures. c. reproductive individuals. d. excretory structures. e. feeding individuals.

Biology & Microbiology

Sexual dimorphism has arisen as a result of

a. stabilizing selection. b. heterozygote superiority. c. kin selection. d. sexual selection. e. directional selection.

Biology & Microbiology

Matching. Choose the most appropriate response for each. 1. ___ age structure 2. ___ population growth rate 3. ___ J-shaped curve 4. ___ limiting factor A. describes a population that is experiencing unrestrained growth B. the

birth rate minus the death rate plus any
inward migration and minus any outward
migration
C. the distribution of individuals at each age
level in a population
D. for example, the amount of glucose in a
culture flask containing bacteria

Biology & Microbiology

Which nervous system conserves energy by slowing the heartbeat and breathing rate and promoting digestion and elimination?

A. voluntary B. sympathetic C. parasympathetic D. autonomic E. somatic

Biology & Microbiology