I believe it's the temperature in the core
Answer:
autotrophs, primary producers :)
Explanation:
It helps us survive. We can survive more time without food than without water
The correct sequence of events for muscle contractions is as follows : :
1. motor neuron action potential.
2. neurotransmitter release.
3. muscle cell action potential.
4. calcium ion release from SR.
5. ATP-driven power stroke.
6. sliding of myofilaments neurotransmitter release.
