The 1st page the best answer would be the last choice,
and sorry thats all i know :(
Adaptations are the modifications that make organisms suited to their life
Jupiter and Saturn are composed mostly of hydrogen and helium. Uranus and Neptune contain some of these gases, but also ices of ammonia and methane.
1) An action potential is propagated down the lower motor neuron
2) Calcium levels increase in the cytoplasm of the muscle cell
3) Acetylcholine binds its receptor and causes depolarization
4) Vesicles containing glutamate fuse with the nerve terminal
5) Contraction.
Answer:
4,1,3,2,5
Explanation: Glutamate is the neurotransmitter that excites the motor neurons and produces action potential in motor neurons. Then this action potential travels down towards the axonic terminal where it would cause release of acetylcholine. ACh then binds to postsynaptic membrane causing depolarization of sarcolemma. Calcium ions are released into the sarcoplasm resulting in muscle contraction.
I think speed sir or miss