Omnivores
a) always exist at the third trophic level
b) subsist on dead matter and waste products of other organisms
c) are never found in the first trophic level
d) may exist at any trophic level
e) feed primarily on primary producers
Ans: c) are never found in the first trophic level
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A) a tree B) a mushroom C) bacteria growing on decomposing matter D) an earthworm E) a person
Carbon fixation is a reduction reaction that converts inorganic CO2 into an organic molecule
a. True b. False
Gene conversion results from
A. discontinuous replication. B. photoreactivation. C. mismatch repair. D. SOS repair. E. excision repair.
During eukaryotic transcription, an RNA molecule is formed that is
a. double-stranded and inside the nucleus b. complementary to both strands of DNA c. identical to an entire single strand of DNA d. complementary to part of one strand of DNA