Answer:
I think it's more man-made possibly, but it might be both. You might want to see if someone says both, both I guess C maybe.
Answer:
No to feel nervous is too feel the sense of feeling scared and has nothing to do with the nerves in your body
The plants might die out because there is no one to pollinate them
Answer:
In biomes the species community undergoes certain changes in evolution and growth in order to reach the climax.
Explanation:
- An alternative stable state is one which suggests the discrete states are sperate by an ecological threshold and in opposition to the ecosystem that is changing and thereby stating that the ecosystem can exist in a variety of alternative state.
- The first species after origin grows develops and then declines. This community of species may be disturbed in middle such as by a fire or flood and forms the secondary community which is more diamine and resistant. The changes are known as seres in biomes.