An important component of Darwin's theory is that
A) natural populations contain genetic variation.
B) acquired characteristics can be inherited.
C) genes are the basic hereditary units.
D) variations are never harmful.
E) non-adaptive traits tend to become more frequent.
Correct Answer:
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Q16: Darwin observed _ in the Galápagos Islands;
Q17: In his observations of the tortoises on
Q18: Most modern scientists agree that
A)Lamarck's theory of
Q19: At the beginning of his voyage on
Q20: Darwin began gathering the evidence to support
Q22: Pelvic bones in whales are examples of
A)convergent
Q23: Similar structures in unrelated organisms that arise
Q24: _ characteristics and structures evolve between species
Q25: A type of absolute dating that uses
Q26: Thomas Malthus believed that poverty,war,plague,and famine result
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