Answer: mesosphere
Explanation: because I am studying it right now
1. B 2. C 3. D 4.? 5. C 7.A 8.?
Answer:
Before mitosis, the chromosomes are copied. They then coil up, and each chromosome looks like a letter X in the nucleus of the cell. The chromosomes now consist of two sister chromatids. Mitosis separates these chromatids, so that each new cell has a copy of every chromosome.
Photosynthesis is the process by which plants make their own food. They need food, so that is why photosynthesis is important.