Answer:
D
Explanation:
because mintochodria is the power house hence it provides energy to the cell
The answer is A. Man-made
Answer:
Over our lifetime, our DNA can undergo changes or mutations that result in differences in the DNA sequence and may affect the proteins that are made. Mutations can occur as a natural consequence of errors in DNA replication or as a result of exposure to environmental factors such as smoking, sunlight or radiation.
Explanation:
They are called transmission electron microscopes.