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Questions in biology

[Homework Help] Evolution is: A) A change in the composition of a population from one generation to the next. B) A phenomenon that must be inferred from evidence, because it cannot be observed directly. C) The transformation of an individual to better fit its environment. D) Driven by the use or disuse of a body part, as when a finch uses its beak to crack open seeds.

[Homework Help] The distance of a wave crest from its resting position is its: A. Wavelength B. Amplitude C. Height

[Homework Help] How would biologists explain how a living orchid species lacking leaves evolved from an ancestral orchid species that had leaves?

[Homework Help] How is mass transit in cities a possible solution to urban air pollution?

[Homework Help] How are adenine and guanine alike and different?

[Homework Help] How does meiosis help to maintain the continuation of a species?

[Homework Help] What was significant about the new habitats Darwin visited?

[Homework Help] How much of Haiti’s forests have been cut down?

[Homework Help] Distinguish between diffusion and equilibrium.

[Homework Help] Contrast alleles are described as being dominant or recessive. What is the difference between a dominant and a recessive allele?