It controls all the involuntary actions like digestion and beating of our heart
The correct answer is option 4, that is, muscle cells require more energy, so they have more mitochondria in comparison to the skin cells.
Mitochondria are the powerhouse of the cells. The synthesis of ATP takes place in them, that is, the energy currencies of the cell. The cells of the muscles need to work hard and thus require ample energy, for this, they need more concentration of mitochondria to generate a high energy yielding ATPs.
Answer:
Natural Selection is a process where the weaker species usually dies first.
I would go with letter A.
If there was no competition there would be an overpopulation. If there was limited food its risky and they could possibly be extinct.
Mark Brainliest pleaseee
Explanation:
They all grow, need air, have cells, have DNA, and need water and food
