Powerhouse is number 1
Gatekeeper is number 2
Greenhouse is number 3
Control room is number 4
Any non-living factor that is used or present in an ecosystem
Common ones are sunlight oxygen nitrogen climate temperature pH levels and water
Answer:
Alcohol affects both "excitatory" neurotransmitters and "inhibitory" neurotransmitters. An example of an excitatory neurotransmitter is glutamate, which would normally increase brain activity and energy levels. Alcohol suppresses the release of glutamate, resulting in a slowdown along your brain's highways.
Explanation:
Answer:
diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.
Explanation:
A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.
