Topic 2 review DP ESS

Front

Why is energy transfer between trophic levels inefficient?

Back

Energy is lost as heat and waste.

Front

What is the main source of energy for most food chains?

Back

Sunlight.

Front

How do large fish benefit from their relationship with small fish?

Back

Through cleaning symbiosis.

Front

What is the trophic level of a zebra in a savanna food chain?

Back

Primary consumer.

Front

Which law explains the loss of energy as heat in a food chain?

Back

Second law of thermodynamics.

Front

Define trophic level.

Back

The position an organism occupies in a food chain, which determines its role in energy transfer.

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food through photosynthesis or chemosynthesis.

Front

Explain the role of decomposers in an ecosystem.

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

Front

What is the difference between a herbivore and a carnivore?

Back

Herbivores eat plants, while carnivores eat other animals.

Front

Define biomass.

Back

The total mass of living matter within a given area or volume.