The answer you're looking for is B. Sporophyte
Answer:
Its used as validity, and quality of the articles. The main purpose of it is to filter out poor or invalid articles.
Explanation:
B, as far as we know humans aren't from space
Answer:
The proton gradient produced by proton pumping during the electron transport chain is used to synthesize ATP. Protons flow down their concentration gradient into the matrix through the membrane protein ATP synthase, causing it to spin (like a water wheel) and catalyze conversion of ADP to ATP. Hope this helps!
Explanation:
Possible brainliest?