Answer:
A
Explanation:
Epipelagic zone is the one closest to the surface and is the best lit.
Answer:
The answer is B, Cooler materials are highly dense, causing them to sink to the outer core.
Explanation:
Answer:
<u>acetylcholine</u>
Explanation:
In the pre-synaptic knob there are vesicles which contain a transmitter substance called acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing the acetylcholine.
The transmitter substance makes the membrane permeable. The neuromuscular junction contains the sensory neurone(afferent), motor neurones(efferent) and the relay neurones(connector).
Bees fly to flower to flower gathering nectar, which they make into food benefiting the bees.
This would be an example of negative feedback because the body isn’t trying to surpass a set point. It’s trying to maintain the amount of food in the stomach at that point.