Adaptive radiation is common following a period of mass extinction, probably because (a) the survivors of a mass extinction are remarkably well adapted to their environment (b) the unchanging environment following a mass extinction drives the evolutionary process (c) many adaptive zones are empty (d) many ecological niches are filled (e) the environment induces changes in the timing of development for many species
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Step 1: After a period of mass extinction, new habitats become available for species to inhabit. Show more…
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Adaptive radiation is common following a period of mass extinction, probably because (a) the survivors of a mass extinction are remarkably well adapted to their environment (b) the unchang. ing environment following a mass extinction drives the evolutionary process (c) many adaptive zones are empty (d) many ecological niches are filled (e) the environment induces changes in the timing of development for many species
Which of the following best characterizes an adaptive radiation? a. Speciation occurs extremely rapidly, and descendant populations occupy a large geographic area. b. A single lineage diversifies rapidly, and descendant populations occupy many habitats and ecological roles. c. Natural selection is particularly intense, because disruptive selection occurs. d. Species recover after a mass extinction.
Madhur L.
Adaptive radiations may be promoted by all of the following except one. Which one? a. mass extinctions that result in vacant ecological niches b. colonization of an isolated region with few competitors c. a gradual change in climate d. a novel adaptation
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