Answer:
Because sound doesn't move in vacuum (of space)
Answer:
I don't know the answer
Explanation:
I just want the point sorry (\_/)
( - ×)
o o
Answer:
D. Hydrogen combines with oxygen to form water.
Explanation:
Hydrogen combining with oxygen to form water is a typical example of chemical reaction.
During a chemical reaction, atoms of elements are rearranged. Most chemical reactions obey the law of conservation of mass which states that "matter is neither created nor destroyed in a chemical reaction but atoms are simply rearranged".
The other choices given are nuclear reactions. In such reactions, atoms are not rearranged but are simply destroyed and made in the process.
Answer: Neurotransmitters are being produced by neuron and stored in vesicles.
Explanation:
Neurotransmitters are secreted into the synaptic gap by exocytosis process, where the vesicles membranes fuse with the presynaptic button. The synaptic gap is usually in the order of 0.02 micron.
Several neurotransmitters include Acetylcholine, Dopamine, GABA (gamma-aminobutyric acid), Glutamate, Norepinephrine, and Serotonin.
