Artificial selection and hybridization can demonstrate the __________ basis of behavior.
A. cognitive
B. operant
C. genetic
D. associational
E. endogenous
C. genetic
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The chromosome shorthand ________ is used to designate a normal male.
A) 45, X B) 46, XX C) 46, XY D) 47, XXY
Which of the following is the correct sequence for the cell cycle?
A. S-G2-M-G1 B. S-M-G1-G2 C. S-G1-M-G2 D. S-M-G2-G1 E. S-G1-G1-M
Which nutrients provide energy for animals?
A) Carbohydrates and proteins B) Carbohydrates, fats, and nucleic acids C) Fats and proteins D) Carbohydrates, fats, and proteins E) Carbohydrates and fats
A pollination syndrome is
A. a brushlike tongue of hummingbirds to which pollen adheres. B. the synchronous release of pollen by many individuals of wind-pollinated trees. C. a series of bristles on the backs of insects to which pollen adheres. D. the simultaneous release of two sperm, one to affect fertilization and the other to initiate formation of endosperm. E. specializations of plants that attract a specific kind of pollinator.