Food Web Lesson

Food Web

By Aguado Angelica

Multiple Select

Mark all the organisms that are considered producers

Multiple Choice

Giraffes have long necks that help them reach leaves high up in trees. They get all the energy they need from plants such as this. What type of consumer are giraffes.

• carnivore

• omnivore

• herbivore

• decomposer

Multiple Choice

Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put energy that stores in the plant back into the ground for other plants to use. What type of consumer are mushrooms?

• carnivore

• omnivore

• herbivore

• decomposer

Trophic levels

Only 10% of the energy of each trophic level actually makes it to the next level.

The other 90% is lost as heat to the environment.

Energy in a food web

How much energy a consumer gets depends on which organism they are eating.

If they are eating primary consumer, they are getting more energy from that trophic level than if they ate something that was a secondary consumer.

Multiple Choice

How much energy gets moved to the next trophic level?

• 100%

• 10%

• 90%

• .1%

Multiple Choice

In the following food chain, how much energy would the snake get if the grass's trophic level started with 50,000 kcal?

• 5,000 kcal

• 500 kcal

• 50 kcal

• 5 kcal