Biology, 04.03.2021 20:10, StitchBeach
Long necks in giraffes are an example of a trait that has been naturally selected over the evolutionary history of an organism. Which of the following best explains what must have happened for this selection to occur?
In each generation of giraffes, long-necked giraffes mated only with short-necked giraffes.
In each generation of giraffes, all the neck lengths were the same, and all the long-necked generations survived.
In each generation of giraffes, there was an abundance of resources available for each individual.
In each generation of giraffes, there was variation in neck lengths, and scarcity of resources meant that not all giraffes survived.
Answers: 1
Biology, 22.06.2019 02:00, vlactawhalm29
How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service
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Biology, 22.06.2019 04:10, diamonds5307
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
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Biology, 22.06.2019 05:00, beiachapman122
What is the farthest destination to date for a human spaceflight mission?
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