The flowers of plants pollinated by night-flying bats open, secrete nectar, and release fragrance only at night. The mechanism that controls this is called ____.
A. thigmotropism
B. heliotropism
C. phototropism
D. photoperiodism
E. circadian rhythm
Answer: E
Biology & Microbiology
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What part of the ATP synthase is responsible for catalyzing ATP formation?
a. the basal unit b. the headpiece c. the stalk d. the lollipop e. the electrons
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Which scientist(s) suggested for the first time
that the proportion of adenine and guanine differs from one species to another?
a. Watson and Crick b. Wilkins c. Hershey and Chase d. Chargaff e. Franklin
Biology & Microbiology
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a. 62; 40 b. 62; 20 c. 50; 20 d. 40; 20
Biology & Microbiology