That would be. All of the above.
Answer:
Natural selection
Explanation:
Natural selection is a process that causes heritable/favorable traits that are helpful for survival and reproduction to become more common as time goes on, and it gets passed from generation to generation.
Answer:
Inside the axon terminal of a sending cell are many synaptic vesicles. These are membrane-bound spheres filled with neurotransmitter molecules. There is a small gap between the axon terminal of the presynaptic neuron and the membrane of the postsynaptic cell, and this gap is called the synaptic cleft.
Explanation:
I hope it's help u :)
Answer:
Gas leaks
Explanation:
I don't know anything about biology but I know gas leaks aren't good for plants
N2(g) + 3H2(g) <--> 2NH3(g)
Bear in mind that this is a reversible reaction.