In every trophic level, only 10% of energy is passed on.
Grass, with 30,000 kJ of energy, is eaten by a zebra.
Zebra then has 10% of 30,000 kJ from the grass, which is 3,000 kJ of energy.
Cheetah then eats the zebra, gaining only 10% of 3,000 kJ of energy of the zebra. Finally as conclusion, cheetah has 300 kJ of energy after having acquired the zebra.
Answer:
Water will move to the left side of the beaker to dilute the sodium on the left side. Solutes will go from a higher concentration to a lower concentration.
It has grown exponentially. Due to the offspring of several generations having longer lifespans, it's become a lot easier for the population to grow.