Atlantic cod have evolved to mature at a younger age and smaller size due to ____
a. DNA damage from radiation released accidentally from nuclear power plants
b. unknown causes
c. food competition from other predatory fish
d. intraspecies competition
e. overexploitation by fishermen
E
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Which characteristic of sensory receptors does phantom pain illustrate?
(a) modality. (b) sensory projection. (c) sensory adaptation. (d) proprioception.
Sugars are usually carried throughout the plant in which tissue?
a. cortex b. parenchyma c. xylem d. phloem e. cambium
An individual who avoids light is exhibiting
a. negative phototaxis. b. positive geotaxis. c. negative thigmotaxis. d. positive thigmotaxis.
The DNA sequencing reaction uses the enzyme DNA polymerase, a primer, and ____________________
a. a restriction enzyme b. a self-replicating vector c. a plasmid RNA d. the four deoxynucleotides found in DNA e. the four ribonucleotides found in RNA