Answer: D. A river separates members of a squirrel population that used to occupy the same geographical area.
Explanation:
Allopathic Speciation occurs when a geographic barrier (river, mountain, or canyon) separates members of a population
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Answer:
Two layers of Lipids make up the cell membrane
Explanation:
The inner and outer phospholipid layers
Answer:
Explanation:
it really depends on the animal but its blinking
