An athlete or a person with some disease may vary in dietary needs.
<h3><u>Explanation</u>:</h3>
The diet is one of the most important part of a human life. The person gets energy, all the macro and micro nutrients from the food. They get to have all protective principles of food from diet. There's an average balanced diet formula which says that the amount of carbohydrate to fat protein in a diet should be 3:1:1.
But it varies according to person's daily need of energy. For an athlete, the amount of energy needed is much more. So the amount of fat and protein in diet should increase. For an obese person, fat and carbohydrate restricted diet should be used. For a person with renal failure, very low protein diet should be suggested.
The answer is A.
Why: The heart is part of an organism, so that doesn't exactly count. Soil is not alive, and neither is clay. Therefore, Bacteria must be it. Bacteria is a living thing, and can function by itself.
Answer:
The influx of calcium ions.
Explanation:
The influx of calcium ions at a certain point produces phase of the action potential also called depolarization which results in the ion movement changes the membrane potential from negative to positive inside the cell.
In action potential, calcium ions may control gene transcription, cell excitability, and neurotransmitter release. In chemical synapses, the influx of calcium ions leads to vesicles filled with neurotransmitters move to the surface of the cell, and into the synaptic cleft release their contents.
This was because one cannot view a single strain of DNA as it is too small for one to visually comprehend.