Examlex
Which of the following is characteristic of lonely people?
Directional Selection
A type of natural selection where an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time.
White-Coated Hares
Refers to the snowshoe hare (Lepus americanus), which changes its coat color from brown to white in the winter to blend in with snow as a camouflage against predators.
Ice Age
A period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers.
Derived Trait
A trait that is present in an organism but was absent in the last common ancestor of the group, indicating an evolutionary change.
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