A = 70, B = 10, C=20, D=20, E= 30, F=50.
germ cells
it occours in the germ cells
No they cant be mechanical because then something would have to generate their rays through the inventing of a machine.
Serch it up might have some answers on there:)
Answer:
The Sun
Explanation:
The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter. This process begins the flow of energy through almost all food webs.