Answer:
4 mass extinctions
Explanation:
as there are huge drops in the graphs
at 440,390,260,50
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A. Separated twins develo traits that differ according to the environments in which they are raised
heir function is to base pair with the codon on a strand of mRNA during translation. This action ensures that the correct amino acid will be added to the growing polypeptide chain. A tRNA molecule will enter the ribosome bound to an amino acid.
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
