The process by which haploid cells are produced from diploid cells is called
A. sexual reproduction.
B. mitosis.
C. fertilization.
D. meiosis.
E. reduction.
D. meiosis.
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Which of the following is least likely to lead to drug resistance in bacteria?
A) a chromosomal mutation that alters cell membrane permeability B) a chromosomal mutation that alters the shape of a particular drug binding site C) receiving a gene that codes for an enzyme that destroys a particular antibiotic D) receiving a gene that codes for the production of a capsule
A change in behavior related to a stimulus and response is
A. aversiveness. B. associative learning. C. habituation. D. orientation. E. aversiveness and habituation.
What key assumption of the endosymbiotic theory is observed in living animals?
What will be an ideal response?
The specific compound that is capable of receiving light energy as the first step in sensory transduction is
A. rhodopsin. B. melanin. C. vitamin A. D. cone opsin. E. retinal.