Secondary succession occurs
a. after a fire.
b. on a new volcanic island.
c. on bare rock.
d. on land exposed as a glacier retreats.
e. none of these
A
Biology & Microbiology
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Barbiturates are
a. depressants. b. stimulants. c. analgesics. d. hallucinogens. e. antipsychotics.
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Which is the most recent plant adaptation to have evolved?
A) Seeds B) Vascular system C) Flowers D) Cones
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The upper chamber on each side of the heart is the ventricle.
a. true b. false
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If you tear your Achilles tendon you are damaging ECM-rich ________ tissue.
A. epithelial B. muscle C. nervous D. connective
Biology & Microbiology