When the concentration of a certain solute is low inside the cell with respect to the cell's external environment, then the cell performs active transport of the solute from the cytoplasm with a low concentration of solute within the cell to the cell's external with a high concentration of the solute. This process of active transport requires the need of energy in the form of ATP to drive the pumps that are present on its cell membrane.
Answer: I think this may be the answer....
Explanation:
The islets of Langerhans contain alpha cells which secrete glucagon and beta cells which secrete insulin. Insulin and glucagon are hormones that work to regulate the level of sugar (glucose) in the body to keep it within a healthy range.
T pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
Answer:
Chemical energy eventually leaves an ecosystem, when the top predator eventually dies. Other plants and animals will use this energy because when the dead body decays, the plants will take some of it through the soil, and put back into the cycle.
Explanation:
They have different food options. :)
