Commercial logging by European countries in the Ivory Coast has reduced the pristine 70 million acres of forests that once existed to about
A) fewer than 1 million acres.
B) 5-7 million acres.
C) 15-20 million acres.
D) 30 million acres.
E) 50 million acres.
B
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A tRNA's anticodon is 5'GGC3'. What amino acid is attached to it?
A. Glycine B. Proline C. Alanine D. Arginine
Which of the following characteristics are
shared by all living organisms? I. organization into cells II. adaptation to environmental change III. requirement for nutrients IV. DNA housed in a nucleus
a. I and II b. I and III c. II and III d. I, II, and III e. I, II, III, and IV
What conclusions did Beadle and Tatum reach with their studies of Neurospora?
a. Each mutant gene affected three enzymes. b. Each mutant gene affected a pair of enzymes. c. Each mutant gene affected only one enzyme. d. Mutant genes had no effect on the enzymes produced by the cells. e. Each mutant gene affected as many enzymes as were present in a particular metabolic pathway
A glucose molecule is to starch as _____.
A. a steroid is to a lipid B. a protein is to an amino acid C. a nucleic acid is to a polypeptide D. a nucleotide is to a nucleic acid E. an amino acid is to a nucleic acid