In most gymnosperms the male gametophyte is transported:
A. through water.
B. through the air.
C. by animals.
D. on the ground.
E. using gravity.
B
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Hepatitis B virus is an example of a DNA virus that uses reverse transcriptase in its replication cycle.
Answer the following statement true (T) or false (F)
Which invention led to trans fats being marketed as a solid cooking fat?
a. the electric light b. the telephone c. the automobile d. the microwave oven e. the refrigerator
“Smaller teeth and jaws, presence of a chin, thin
facial bones, and rounder, higher skull” would be a partial description of a. Australopithecus robustus. b. Australopithecus boisei. c. Homo habilis (early Homo). d. Homo erectus. e. Homo sapiens.
Which type of bond holds the two strands of DNA together?
a. ionic b. network c. polar covalent d. hydrogen e. non-polar covalent