Cholera enterotoxin causes ________, which is the primary way infected individuals die from the disease
a. extremely high fever
b. diarrhea and dehydration
c. hemolysis of the intestinal tract cells
d. sepsis
Answer: B
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The major predators of giant squid are:
a. gulper eels. b. sperm whales. c. giant octopus. d. vampire squid. e. viper fish.
At what neuron location does summation occur?
a. dendrites b. cell body c. axon hillock d. Schwann cells e. axon terminals
Which of the following is a management technique to reduce the effects of logging?
A) clear-cutting B) shelterwood C) top harvest D) controlled burns
Consider a chromosome with ordered loci A (A/a), B (B/b), C (C/c), D (D/d), and E (E/e) where the letters in the parentheses indicate the alleles at loci
On a chromosome in which A, C, D, and E are coupling, a new allele arises at the locus B. This new allele B, has a negative effect on fitness. As a result, we would expect: a. the genetic variation at neighboring loci to decrease. b. the alleles A, C, D, and E may be lost due to background selection. c. the alleles A, C, D, and E may be lost due to genetic hitchhiking. d. A and B. e. All of the above.