Biology, 01.08.2020 03:01 serenabrown34
Along the length of a river, there exists a species of green sunfish. In order to provide electricity to area homes, a hydroelectric dam is built that separates the lower river area from a newly formed lake above. After many, many years, the green sunfish in the river and lake are sampled and found to be very different. Which of the scenarios listed below is the best hypothesis to explain the changes observed?
a. directional selection.
b. disruptive selection.
c. stabilizing selection.
d. sexual selection.
Answers: 2
Biology, 21.06.2019 19:30, granthazenp5e9mj
Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?
Answers: 1
Biology, 22.06.2019 01:30, vetterk1400
Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.
Answers: 1
Biology, 22.06.2019 06:30, atiyawhite7863
Step 1 review the imaginary strand of dna below. note the complementary base pairs. a g c a a t c c g t c t t g g t c g t t a g g c a g a a c c step 2 to begin replicating this strand of dna, draw the two sides of the strand separating. step 3 now, draw the free-floating bases linking up with the separate sides. remember to follow the rules of complementary base pairing. step 4 draw the two resulting dna strands.
Answers: 1
Along the length of a river, there exists a species of green sunfish. In order to provide electricit...
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