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The new species come from old ancestors of the animals that were there, over time they slowly evolved, and they adapted to that new environment.
Answer:
CO2 overabundant gas have humans accumulated in our atmosphere that has caused the greenhouse effect
Answer:
That would be option D. A motor.
Explanation:
Whole genes and parts of genes can be extracted from chromosomes, linked to other DNA molecules to form recombinant DNA and introduced into living cells. In a process known as gene cloning, the host cell's biochemical processes are used to make many copies of the inserted gene and the protein it codes for.