Rate of Change
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How do new species form?
A new species can form when a group of individuals remain isolated from the rest of it species long enough to evolve different traits that prevent reproduction.
_______ is a pattern of new species form and over very long periods of time.
Gradualism
What evidence in the fossil record support gradualism?
Intermediate forms of organisms showing gradual changes.
______ occurs when some members of a species become cut off.
Isolation
The cow and the dog are separate species, unable to _______ with each other.
Mate
_______ is a pattern of new species evolving during short periods of rapid change.
Punctuated Equilibrium
What are some examples of natural barriers that can separate group members?
River, Volcano, Mountain, range, Ocean