Answer:
The region where the end of an axon from a neuron comes into close contact with a muscle fiber is called a motor end plate/neuromuscular junctions.
Explanation:
Neuromuscular junction is the connection between end of the axon terminal and the muscle fiber. It is the site of transfer of signal from the neuron to the target muscle. The action potential is generated at the axon terminal which causes the calcium channel to open releasing the neurotransmitters into the synaptic cleft. The acetylcholine which is the neurotransmitter then bind to the receptors on the muscle which opens the sodium channels and it is released into the muscle which causes the depolarization of the muscles. The calcium ions then enters the cells and the muscles contract.
Learn more about neuromuscular junctions here:
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A LOSS OF DISSOLVED OXYGEN IN THE WATER is the primary and direct cause of death of aquatic animals during eutrophication or what is also known as hypertrophication.
This is the enrichment of a water body with excessive chemical nutrients which can be a problem in marine habitats, as it can cause algal blooms. With this is the occurrence of dense growth of plant life and death of animal life from lack of oxygen.
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Answer:
Bacteria may spread directly from one person to another. For example, they can spread through touching, coughing, or sneezing. They may also spread via food, water, or objects. Another way bacteria and other pathogens can spread by vectors.
(touching, coughing, or sneezing)
Explanation:
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