Answer: I cant say for sure how many species have to be extinct. But yes a species can become extinct.
Explanation:
acid test
Explanation:
the first test the chemist should do is an acid test
That is an ATP molecule if I remember correctly
A
diffusion increases because the particles want to go from high consentration to low consentration
<span>Sodium does the transmissions of nerve impulses around the body.</span>