Answer:
Many biological processes happen during sleep: The brain stores new information and gets rid of toxic waste. Nerve cells communicate and reorganize, which supports healthy brain function. The body repairs cells, restores energy, and releases molecules like hormones and proteins.
It’s above the mesosphere, but below the exosphere. It extends roughly 90 km to 500/1,000 km above. There’s a lot of solar activity that influences temperature there.
Answer:
B
Explanation:
Natural selection deals with adaptation to environment to survive better than less adapted and how their environment changes them.
Answer: Ecosystems are made of food chains which are interconnected food webs.
