Bacterial DNA replication occurs at a rate of ________.
A. 50-100 base pairs per second
B. 50-100 base pairs per minute
C. 750-1,000 base pairs per second
D. 750-1,000 base pairs per minute
Answer: C
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Which of the following respiratory structures are moist evaginations?
a. tracheal tubes b. lungs c. gills d. skin e. nasal passages
Chlorophyll a molecules absorb ____ light
a. orange, green and yellow b. orange, purple and red c. red and yellow d. orange and blue e. purple, orange, and yellow
Which of the following is NOT an inhibitor of DNA and RNA synthesis?
A. Rifampin B. Erythromycin C. Metronidazole D. Nalidixic acid
Does the ability to disperse over long distances lower a species' chance of extinction?
a. Yes, as data on Cretaceous gastropods show that species with higher dispersal ability have lower extinction rates. b. No, there is no relationship between a species' dispersal ability and its range. c. Not necessarily, this is only the case if species range correlates positively with dispersal abil-ity. d. No, in Cretaceous gastropods species with long range dispersal have an increased chance of extinction.