The fusion of two gametes produces a
A. zygote.
B. schizont.
C. chromatid.
D. centromere.
E. merozoite.
Answer: A
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Random variation in the outcomes of competition experiments is called
A. allelopathy. B. stochasticity. C. commensalism. D. competition frequency. E. resource partitioning.
Prokaryotes that harvest both energy and carbon atoms from organic molecules are called
A. photoautotrophs. B. chemolithoautotrophs. C. photoheterotrophs. D. chemoheterotrophs. E. nitrogen fixers.
What is similar about G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs)?
A. Both are directly bound to G proteins B. Both can activate phospholipase C C. Both are enzymes D. Both are activated by autophosphorylation
A population of wolf spiders exemplifies a
__________ population distribution. a. clumped b. random c. uniform d. constant e. homogeneous