Answer: it's because they need to provide a lot of energy.
Explanation: fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.
The answer for your question is B
Step 1
Copy of one side of DNA strand is made (called mRNA, messenger RNA)
Step 2
mRNA moves to cytoplasm, then ribosome
Step 3
mRNA goes through ribosome 3 bases at a time
Step 4
transfer RNA (tRNA) matches up with the open DNA bases
Step 5
tRNA releases the amino acid at the top, which joins the chain of amino acids being produced
