I think the answer is A hope this helps
Answer:
Mitochondria is the powerhouse of the cell
Explanation:
Pls mark as brainliest
Answer:
1.chemical receptors
2. nerves carry signal to the brain
3. nerves carry signals to the muscle
4. the brain process these signals
5. the shark changes direction and swims towards pray
Explanation:
Length of dna wound onto a histone protein
