Answer:
Real dinosaurs can not be studied because they died out many years ago. so this is how we are learning about the past
Explanation:
Answer:
NADH and FADH2 carry electrons to specialized cell membranes,where they are harvested to create ATP.Once the electrons are used, they become depleted and must be removed from the body. Oxygen is essential for this task. Used electrons bind with oxygen; this molecules eventually bind with hydrogen to form water
Explanation:
I hope it helps
Well it surely isn't nuclear, or electrical. It's not radiant either.. So the only answer is chemical.