I'm tied between A) and D). I say D). Hope this helps!
Aye Sir!!
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).
All organisms reproduce either sexually or asexually is the correct contrast to the mistaken idea of spontaneous generation
C . all the organisms reproduce either sexually or asexually
<u>Explanation:</u>
The organism could not arise only through the sexually and the asexual reproduction but it is also reproduced through the process of spontaneous generation.
The essential character is offspring is while mother supply is the only solid substrates. The reproduction also takes place by either the egg of the mother or the sperm of the father and began to grow when it is stimulated. Spontaneous generation is defined as the living creature that could arise from nonliving matter.
Calcium ion is responsible for Muscle Contractions.
When the ph freshwater becomes highly alkaline, it causes fish to die and damage to outer surface like grills, eyes and skin