<span>Earthquakes happen in the Earth’s crust. It's when the plates on the crust move. </span>
Answer:
water is what earth is mainly made of. our bodies are also mainly water.
C.
climate is defined by all of the following except for: governs fresh water supply, type of crops, distribution of plants and animals
I think it’s proteins and nucleic acids
Answer:
low level of calcium would result in fewer signals sent between pre and post synaptic cells.
Explanation:
The calcium has a main role in signal transmission mechanism and here is the mechanism :
1-the impulse reaches the synapse (depolarization which is a voltage change).
2-the voltage gated calcium channels open and let calcium flow into the cell.
3-the calcium causes the synaptic vesicles to rupture and release chemical transmitters which cross the synaptic cleft and finally bind to receptors on the post synaptic cell (transmitting the signal)
so it's obvious that if calcium concentration decreases, the signal transmission also decreases.