Answer:
Niche can be described as the role or position that a particular organism has in its ecosystem.
For example, honeybees which will gather nectar from flowers to make honey is an example of a niche. The particular role of honeybees in an ecosystem is to collect nectar in that ecosystem from different flowers and to produce honey. Other organisms living in the same environment will not perform the same function in the ecosystem.
It's the sodium ion.
When a neural impulse is fired in both neurons, it is always cause by an excited electron in one neuron moving to the other neuron to destabilize the balance of ions trying to keep them at equilibrium. This action either depolarizes or hyper-polarizes the membrane. If it does, then sodium ions--the key deficient ones--can flow into that region of low charge and maintain that state of low charge, keeping the cell membrane stable.
The priority nursing intervention for this client is FOR THE NURSE TO TAKE CARE OF THE IMPAIRED GAS EXCHANGE.
Dyspnea is a medical condition in which the affected individuals have difficulty in breathing properly, that is, such individuals usually experience shortness of breath. Shortness of breath is one of the symptoms that are associated with heart failure. In the scenario given above, the first thing for the nurse to do is to ensure that the patient is breathing normally again, before setting out to take care of other things.