Polygenic traits are a. controlled by two or more genes b .controlled by one gene c. controlled by polygons d .controlled by at least 3 genes How can temporal isolation lead to speciation? a. If two populations do not like each other, this may lead to the formation of a separate species b.If two populations reproduce in different ways, this may lead them to become separate species c. If two populations are separated by a geographic barrier, this will cause them to reproduce with other members of their own species which may them to become separate species d.If two populations reproduce at different times, they are unlikely to reproduce with each other which may cause them to become separate species You are hiking and notice two species of bird that look alike and live in the same region. Although these species look alike, they do not mate with each other because one species of bird displays a ritualistic dance, while the other species sings a certain call. This is an example of a. Reproductive isolation b. Behavior isolation c. Temporal isolation d. Lack of interest The Kaibab squirrel and Abert squirrel both live in the southwestern United States, specifically the area of the Grand Canyon. The regions they live in overlap, however they do not interbreed. What type of isolation mechanism is illustrated by these squirrels? a. Temporal isolation b .Geographic isolation c.Behavioral isolation d.None of the above
Posted on: Sun, 29 Jun 2014 18:39:24 +0000
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