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Answer: So they can fertilize the egg.
Explanation:
Answer:
Someone who excessively uses drugs
Explanation:
the answer would be the worst one a
Answer: The nervous system
Explanation:
The first part of the embryo to develop is the neural tube, which will become the spinal cord and brain. As the nervous system starts to develop, the tiny heart starts to pump blood, and other parts of the body—such as the digestive tract and backbone—begin to emerge.
