The fetus get's it's nourishment from the placenta.
He found a nuclear structure (cells) in plants by looking through a microscope
Natural system is former when various components get grouped together for a particular function
Answer:
As DNA replication continues and the replication bubble expands, the parental double helix is unwound and separated into its two component strands. This unwinding and separating of the DNA require three different types of proteins: helicase, topoisomerase, and single-strand binding proteins.
Explanation:
3 More Days Till Christmas
Answer:
Chlorinated water
Explanation:
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