Yes Darwin’s theory of natural selection
<span>Because the left ventricle has a stronger muscular wall than the right ventricle?</span>
density, it's a mass per unit volume
<span>The area was most likely eroded by a earthquake. Feel free to message me if you have any other questions.
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The correct answer is: prevent reception of a signal in a receiving neuron
Neurotransmitters are signal molecules or chemical messengers which transmit signals across a chemical synapse. Neurotransmitters send the signal, from one neuron (nerve cell) to another neuron, from neuron to muscle cell (motor plate), or from neuron to gland cell.
Drugs that bind to neurotransmitter’s receptor can have two effects on its action:
• Antagonists-they bind to receptor and thus prevent a neurotransmitter from binding to it
• Agonists-they bind to receptor and mimic the normal neurotransmitter (have the same effect as neurotransmitter).