Both involve gaining a positive effect from a source which becomes harmed.
Example: a predator eats it's prey for food
A parasite like a tape worm feeds off the nutrients in your body and makes the person sick
Answer:
air
Explanation: without air you can cant even live
<span>a. constructed from thick aluminum walls that can control the nuclear reactions </span>
Well, to answer your first question, Because there are places on Earth that are both biologically rich — and deeply threatened. For our own sake, we must work to protect them. and for your 2nd question, 3 characteristics of magnetic reversal are: field, bar magnet, and molten material. Hope this helps
