Effects of bacterial exposure may lead to disease in the host. Place the following occurrences in the proper sequence or order.
A) disease, infection, contact
B) contact, disease, infection
C) contact, infection, disease
D) infection, contact, disease
Ans: C) contact, infection, disease
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In medicine, agriculture, and conservation applications of biotechnology, the common genetic unit used is the
A. allele. B. gene. C. centromere. D. nucleotide (nitrogen base). E. chromatid.
The two principal divisions of the peripheral nervous system are the
a. somatic and autonomic systems. b. sympathetic and parasympathetic systems. c. peripheral and central systems. d. afferent and autonomic systems. e. cranial and skeletal nerves.
In the section "Investigating Life: Size Matters in Fishing Frenzy", historically fishermen kept larger fish and left smaller juvenile fish. Over time the average size of the fish would
A. increase by natural selection. B. decrease by genetic drift. C. decrease by natural selection. D. increase by genetic drift. E. remain unchanged.
Which of the following usually occur during exercise? (Select all that apply.)
a. Increase in blood flow to the kidneys b. Increase in sympathetic nervous system output c. Increase in total peripheral resistance d. Increase in stroke volume