Answer:
The endosymbiotic theory explains the origins of eukaryotic cells.
Explanation:
Answer:
They speed up chemical reactions. Without them you wouldn't be alive. They break down macromolecules, and also lower the amount of energy needed for a chemical reaction to happen.
Answer:
B. Oxygen molecules recombine to allow cells to get larger
What is the word that describes the path of the sun, moon and zodiac as they "move" across the sky? Ecliptic is the answer.
