Food Chains and Energy

Front

In nearly all food chains the energy originates from the .........

Back

sun

Front

What type of organisms are producers in a food chain?

Back

plant, plants

Front

What process do producers do that creates energy containing molecules such as glucose?

Back

photosynthesis, photosyntheses

Front

Which level of the food chain consists of herbivores?
Options: producers, primary consumers, secondary consumers, decomposers

Back

primary consumers

Front

Name the snake's trophic level in this food chain?

Back

secondary consumer, secondary consumers

Front

Why is dry biomass a more useful measurement than wet biomass?

Back

Body water does not contain energy that can be passed up the food chain.

Front

On average, what percentage of energy is lost at each level of a food chain?

Back

90% (or ninety) is the percentage of energy lost at each level of a food chain.

Front

Measuring the biomass at each trophic level in a food chain is useful because:

Back

It is an indicator of the energy contained in each trophic level

Front

The arrows in a food web show:

Back

The transfer of energy between organisms

Front

Imagine that a food chain exists on one tree. If the tree contains 100,000 calories, how many calories would you expect to be contained in the tertiary consumers?

Back

100, 1 hundred