Answer:
Explanation:
Answer: C, Friction
Which force acts when one object moves against another object?
Friction
It is called a watershed.
Answer:
Red blood cells and blood plasma do not contain DNA. Red blood cells don't have the DNA containing nucleus and mitochondria. Only white blood cells in blood contain DNA. With blood donation, usually most of the white blood cells are filtered out.
Explanation:
because red blood cells don't have the DNA containing nucleus and mitochondria
Answer:
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A. Separated twins develo traits that differ according to the environments in which they are raised
