Hydrogen and oxygen cells combine explosively combine.-answers.com
I found this online. on answers.com so I do not own credit.
The secret of an endocrine gland that is transmitter by the blood to the tissue travel through the body .
In the stomach i think or lungs
Answer:
The animals adapt to survive.
Explanation:
If a giraffe can't reach the food that another one can, that giraffe will die and the longer necked one wll survive. Adaptations over time cause evolution. The fittest will survive. (Darwinism)
D is the correct answer. everything said in all of the above is in the mitochondria to help it function.