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RNA polymerase binds to regions of DNA called promoters, which are "start" signals for transcription
Answer:
The correct answer is -
the neurotransmitters are broken down in the synapse
The presynaptic neuron absorbs the neurotransmitters
Explanation:
The termination of the neurotransmitters is essential as if they can cause harm by continuing the stimulus effect on the muscles or cells. To clean up these neurotransmitters there are two ways- Degradation of neurotransmitters with the help of enzymes in the synapses or synaptic cleft and the presynaptic neurons absorbs or suck up neurotransmitters. The neuron (presynaptic neuron) is that releases the neurotransmitter like dopamine, serotonin, is the one that re-uptake it.
This reuptake is done by transporter proteins that are are symporters in nature as these proteins pump neurotransmitters as well as ions back into the neuron.
Ungulate refers to the large, diverse group of mammals which use the tip of their toes to support their whole body weight while moving. They are divided into two, which are odd toe and even toe ungulates.
Even toe ungulates are those mammals whose weight are supported equally by their third and fourth toes while they are moving. Examples of such animals are cattle, pig, giraffe, camel, etc.<span />
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