It should be the trophic level..
<span>Which planet is the only one known to have oceans of liquid water? Mercury Venus, Earth, Mars? The answer is Earth.</span>
Acetylcholine is the neurotransmitter important for muscle contraction as it binds to receptors on the membranes of muscles and cause the membranes to open channels for movement of calcium and sodium ions
Klay does not have to worry about anything blowing up or inhailing harmful gases.
They are homologous characteristics.
