Answer:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Explanation:
Sympathetic nervous system elevates blood pressure. Long term, decrease in capillary blood
pressure recalls fluids from interstitial spaces. Aldosterone and ADH promote
fluid retention. Increased thirst promotes water absorption across the
digestive tract. Short term, Carotid and aortic reflexes move up cardiac output
and peripheral vasoconstriction.
Answer:
No. when stomata is blocked, photosynthesis will stop because the CO₂ level will decline within the leaf, stopping the reactions that are light-independent.
4.shapes of leaves....……………
Answer:
The rate of osmosis increases with increasing differences in solute concentrations between two solutions separated by a selectively permeable membrane.
Explanation:
Osmosis is the movement of solvent from an area which is having a low concentration of solute to an area having a high concentration of solute through a semi-permeable membrane. It is a type of diffusion and does not require any energy to occur. Osmosis helps cells to maintain their osmotic pressure and maintain the cell shape.
So if the difference in solute concentration between two solutions which are separated by semi-permeable membrane increases than the rate of osmosis will increase to maintain the balance of solute concentration of both the site.
