The niche of an earthworm in an ecosystem is as a(n)____
a. producer
b. consumer
c. detritivore
d. decomposer
e. parasite
ANSWER: c
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The use of selected culture media and incubation conditions to isolate microorganisms from samples is known as a(n)
A) differential culture. B) selective culture. C) enrichment culture. D) sensitive culture.
Which of the following is(are) associated with balance?
a. semicircular canals b. cochlea c. incus, malleus, and stapes d. eardrum and ear canal
Which of the following is NOT true of carbon
dioxide? a. It is released in the burning of fossil fuels. b. It contributes to ozone destruction. c. It is absorbed by plants. d. It contributes to global warming. e. All of these are true
The __________ asteroid hypothesis proposes that
an asteroid impact led to the extinction of dinosaurs. Fill in the blank(s) with the appropriate word(s).