Which structure do numerous mollusks use to scrape algae off rocks?

a. chelicerae
b. pupa
c. radula
d. beak
e. shell


c

Biology & Microbiology

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Which sensory system is associated with the occipital lobe of the brain?

A. vision B. hearing C. touch D. taste

Biology & Microbiology

Increased phosphate levels in the Everglades has led to:

A. displacement of native plants by phosphate-loving introduced plants. B. eutrophication followed by declines in fish and alligator populations. C. increased plant growth and diversity. D. expansion of native plants into adjacent ecosystems. E. declining populations of low-phosphate adapted cattails.

Biology & Microbiology

In the flower diagram shown above, the item labeled "3" is a(n)

a. anther. b. receptacle. c. style. d. stigma. e. filament.

Biology & Microbiology

If two molecules are mirror images of each other, the two molecules may be

A. cis isomers B. trans isomers C. Enantiomers D. Structural isomers

Biology & Microbiology