Answer:
Cells have different receptors that are specific for different molecules. Receptors can also respond directly to light or pressure, which makes cells sensitive to events in the atmosphere.
Explanation:
Answer:
Amount of air inhaled or exhaled per breathing stroke is called as tidal volume. Tidal volume is 400 ml for women while for men it is 500 ml.
Explanation:
In respiration, tidal volume is defined as the volume of air that a person inhales or exhales in one stroke of normal breathing.
The tidal volume varies in adult men and women. In resting condition, tidal volume is 400 ml for women while for men it is 500 ml.
This tidal volume varies with the requirement of the body. During intense physical exercise the amount of gas intake increases in order to full fill the requirement of body and hence the tidal volume increases.
Answer:
Water!
Explanation:
A stream-lined and slippery body is the characteristic feature of aquatic organisms. The stream-lined body of aquatic animals helps them move easily in water. Possessing a streamlined body reduces resistance when moving whereas a slippery body provide resistance to parasites and also help some animals to breathe through their skin.
Hope this helps! :)
