For many species, there are often regional differences in their genes, although most of the time this differences aren't noticeable in their outward appearance.
An increase in insulating atmospheric gasses (e.g. carbon dioxide)
Answer:
The answer to your question is 4. The earth has four oceans.
Explanation:
The four oceans that we have are: The Pacific, Atlantic, Indian, and Arctic.
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Answer:
A sample count is the data from a sample, or a small group. A total count would be the data from the entirety of whats being studied, not just a sample.