As animals move up in the food chain they start to have larger competition for food with other animals, deer compete with elk and even rodents that eat the same food as them. They must fight for food and survival.
B. To contrast between the high and low concentration of molecules.
for example a solution with a higher solute concentration than the inside of the cell is called hypertonic
1.Net Energy Gain is a concept used in energy economics that refers to the difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.
