Normally, oxygen from the blood cells supply your muscles with the energy it needs to carry out certain actions. However, when there isn't enough oxygen to support the muscles, it produces lactic acid, or fermentation, to make up for the oxygen. (That's why you get that burn-y feeling whenever you exercise!)
A. People can Change the way that the genes flow
Answer:
Tubules?
Explanation
The trachea, spiracle, and air sac are part of their respiratory system, Howeber, the tubules are what take away the carbon dioxide from their system. Im not sure if they produce the carbon dioixde. But they are a part of what removes the carbon-dioxide from their body.
Answer:
Homeostasis
Explanation:
It is what makes to where you are a warm enough temperature that's not to hot and not to cold. It tells all the cells in that one part of your body what to do keep it balanced. If you don't understand this just comment on my answer and say what you need to tell me so I know what to adjust so you can understand it.
They relate because they show that during both natural selection and human evolution u could get a disease during both
