The study of biological diversity and evolutionary relationships among organisms is
A. nomenclature.
B. taxonomy.
C. ecology.
D. systematics.
E. biology.
D. systematics.
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The process of diffusion requires:
A. a concentration gradient. B. ATP energy. C. the random movement of molecules. D. transport proteins.
The fraction known as the broad-sense heritability (where VG = genetic variation, VP = phenotypic variation, and VE = environmental variation) is expressed by ________
A) VG/VP B) VG/VG + VE C) VG/VP + VE D) VG/VE E) A and B are both accurate.
cAMP levels decrease when __________. This results in __________ of CAP
a. lactose levels increase; activation b. lactose levels decrease; inhibition c. glucose levels increase; inhibition d. glucose levels decrease; activation e. glucose levels decrease; inhibition
What is the role of DNA molecule in the synthesis of proteins?
a. they catalyze the formation of bonds between amino acids. b. they determine the sequence of amino acids in a protein c. they transfer amino acids from the cytoplasm to the nucleus d. they supply energy for protein synthesis