The diaphragm is a sheet-like skeletal muscle that separates the
(a) thoracic and pleural cavities.
(b) thoracic and pericardial cavities.
(c) thoracic and abdominopelvic cavities.
(d) pleural and pericardial cavities.
(c) thoracic and abdominopelvic cavities.
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Bacteriophage that only exhibit lytic replication cycles are called ________ phages.
A. lytigate B. temperate C. virulent D. intemperate
In plants, primary and secondary cell walls, though distinctly different, share all of the following molecules except
a. cellulose. b. hemicelluloses. c. pectin. d. peptidoglycans.
Baby ducks can be taught to behave as though a human investigator was their mother by providing the appropriate stimulus during a sensitive period. This form of learning is called
A) habituation. B) altruism. C) classical conditioning. D) imprinting. E) fixed action behavior.
James and Sally wanted to have a baby but were not having any luck, so they decided to try an artificial means of conception. They eventually were directed to a laboratory, where sperm and eggs were placed in a dish. This allows a sperm to merge with the
egg as it would in the oviduct. This procedure is called ________. A) surrogate motherhood B) in vitro fertilization C) gamete intrafallopian transfer D) zygote intrafallopian transfer