Which of the following is an example of vehicle transmission?
A. kissing
B. having intercourse
C. sharing a glass
D. drinking contaminated water
E. being bitten by a mosquito
Answer: D
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The metabolic rate of an endotherm _____ at low environmental temperatures while the metabolic rate
of an ectotherm _____ at low environmental temperatures
a. falls; rises b. falls; falls c. rises; falls d. rises; rises e. it depends on the particular endotherm or ectotherm, so all of these are possible
In a pedigree chart, a ____________ disease affects individuals every other generation.
Fill in the blank(s) with the appropriate word(s).
Gap genes of Drosophila embryos:a
organize the embryo into broad regions and influence the activity of pair-rule genes. b. are missing from the chromosomes of mutant flies. c. are genes that have moved to gaps on other chromosome during meiosis. d. cause gaps in the cell cycle. e. cause the death of embryos before they hatch.
The location of specific genes
A.) cannot be determined with current biological methods. B.) has only rarely been determined. C.) can be mapped to specific spots on chromosomes. D.) has been found only for humans.