Which is the first step in allopatric speciation?
a. loss of genetic variation due to genetic...
Biology, 21.08.2019 09:50 jazmine8194
Which is the first step in allopatric speciation?
a. loss of genetic variation due to genetic drift
b. genetic divergence due to mutation
c. physical isolation of two populations
d. differential natural selection in different environments in advance!
Answers: 1
Biology, 22.06.2019 05:30
Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.
Answers: 1
Biology, 22.06.2019 10:00
14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca
Answers: 2
Biology, 22.06.2019 21:00
An adult inhales about 6.0Ă10â4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0Ă105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
Answers: 2
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