Question

Only 10% of energy moves from one trophic level to the next. How do tertiary consumers get this energy from secondary consumers?(1 point)

By eating the food the secondary consumer would normally eat.

By consuming (eating) them.

The heat from the secondary consumer warms the tertiary consumer, giving them their energy.

By eating the grass that grew from the soil where the secondary consumer died.
If only 10% of energy moves from one trophic level to the next, what happens to the other 90%? What do organisms use this 90% for?(1 point)

It remains in the parts of the original organism that isn't eaten and returns to the soil.

It is used for photosynthesis and released as heat.

The original organism stores it in their tissues.

It is used for metabolism by the original organisms and released as heat.
How does the 10% rule explain why there aren't very many apex predators, relative to the amount of prey?(1 point)

If there were more apex predators, the prey would begin eating them to get energy.

If there were more apex predators, the amount of prey would increase, causing an overpopulation.

Because so much energy is lost at each trophic level, there is too much energy available, which results in ecosystem collapse.

Because so much energy is lost at each trophic level, there isn't enough left to support many apex predators.

Answer 1

1) By consuming (eating) them.

2) It is used for metabolism by the original organisms and released as heat.

3) Because so much energy is lost at each trophic level, there isn't enough left to support many apex predators.