Answer:
A bc it moves the bones in the arm and the muscles and the nerves are what send the signals to the muscles to move
The answer is shark,skate,ray
Answer:
Photosynthesis happens in green plants and certain other organisms, they use the energy of light to convert carbon dioxide and water into the simple sugar glucose. by doing that, photosynthesis provides the basic energy source for basically all organisms. An important byproduct of photosynthesis is oxygen, on which most organisms depend.
Explanation:
basically they use it like we use food and oxygen, it gives them energy and acts as "food" for them by converting it to oxygen which they need :)
NAD +molecule
Explanation:
Krebs cycle and electron transport chain are important steps in cellular respiration.
In the Krebs cycle, there is a need of NAD+ molecule which is then in Krebs cycle reduced to form a NADH2 molecule.
NADH2 is also an energy currency. It , giving electron in electron transport chain and return to Krebs cycle as NAD+.
Now in the Krebs cycle, it is ready to take electrons again.
It is called Fertilization and is the fusion of the male and female gamete
