Crocuses that bloom in the early spring and marigolds that bloom in the summer would definitely
experience which type of isolation?
a. behavior
b. ecological
c. gametic
d. temporal
e. should not exhibit any type of isolation
D
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Drug-resistant strains of Streptococcus pneumoniae are now treated with ________.
A. tetracyline B. vancomycin C. penicillin V D. Ketek E. eryrthromycin
In aquatic systems, which of the following are highly
resistant to low DO levels in the sediment? a. stoneflies and mayflies b. carp and goldfish c. Tubifex worms d. ducks and geese e. none of these
Familial hypercholesterolemia affects approximately what paercentage of individuals?
a. 1/500 b. 1/5 c. 1/50 d. 1/1,000 e. 2/100
Attached earlobes are recessive to free earlobes. What is the probability of having a child with attached earlobes when an individual with attached earlobes mates with an individual heterozygous for free earlobes?
A) 0% B) 25% C) 50% D) 75%