Answer:
Nucleic Acids
Explanation:
Nucleic acids link together to form DNA, which determines the different traits people have, directly relating to appearance.
Answer: They simply decay into a nonradioactive isotope
Explanation: Hoped this helped
Deterioration
in neurons that produce acetylcholine is an underlying Alzheimer's disease. <span>Acetylcholine
is an organic chemical that functions as a neurotransmitter at neuromuscular
junctions, at synapses, in the ganglia of the visceral motor
system, and at a variety of sites within the central nervous
system in the brain and body of many types of animals, including
humans. A neurotransmitter is a substance released by </span>synaptic terminals
for the purpose of transmitting information from one nerve cell to another.
The elements can be chlorine or bromine
Voltage sources are uses to sustain the flow of protons chemical reactions resistance in the movement of electric charge.
