Answer:
Stigma is the swollen structure at the end of a style.
In other words, stigma is the entrance to the pollen grains or as the landing platform for the pollen grains.
Explanation:
Please give me brainlist
Answer:
The correct answers are-
a. Its metabolic demands increase.
b. It's surface area-to-volume ratio decreases.
c. Its ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands decreases.
Explanation:
As the size of a cell increases the surface area to volume ratio decrease. So a big cell has less surface area and small volume. Therefore surface area for transfer of metabolic substance per unit volume decreases so the cell's ability to transport enough nutrients in and transport wastes out to meet cellular metabolic demands also decreases.
But due to an increase in the volume of the cell the metabolic demand of cell increases because a larger cell requires more nutrients than a smaller cell to survive which can not be fulfilled efficiently due to less surface-area-to-volume ratio.
Therefore the correct answer is a, b, and c.
Enzymes are known as catalysts in a chemical reaction, as they can reduce the time it takes for the reaction to occur by breaking things down. Enzymes are important to living things, because they can be found throughout the body to aid in things like digestion and fighting illnesses. A good example would be putting a Ritz cracker in your mouth and letting it dissolve. This happens because your mouth is full of enzymes that help break food down before entering the digestive system. Hope this helps! :)
The Opponent-Process theory of color vision holds that we perceive colors because of pairs the receptors that make antagonistic responses. <span />
