Food Webs and Energy Pyramid Review

Food Webs and Energy Pyramid

Producers and Consumers

Plants are producers (autotrophs)

Animals are consumers (heterotrophs)

Multiple Choice

The source of energy for all ecosystems is _______.

(Hint: it is needed for photosynthesis)

• producer

• the sun

• water

• consumers

• oxygen

​Energy transfer is shown between organisms with an arrow.

The arrow points to the organism the energy is being transferred to.

You can think of food going into the mouth of the organism.

Multiple Choice

This is a(n)

• A. producer

• B. autotroph

• C. consumer

• D. both A and B

Consumers - they eat!

• Herbivores

  • get their energy from plants

• Omnivores

  • get their energy from

  • plants and animals

• Carnivores

  • get their energy from other animals

• Detritivores

  • get their energy from dead/decaying organisms

  • (they break down organic matter)

  • aka decomposers, scavengers

Match

Match the organisms with the type of consumer they are.

• Koalas eat eucalyptus leaves.

• Racoons, like humans, eat everything!

• Tigers have been known to hunt animals.

• They organisms break down organic matter

herbivore

omnivores

carnivore

decomposers/ detritvore

• herbivore

• omnivores

• carnivore

• decomposers/ detritvore

Trophic levels

Count from the bottom up

Multiple Choice

Mice eat seeds, nuts and berries. Snakes eat small rodents including mice. What TROPHIC level do snakes belong to on an energy pyramid?

• Level 1: Producers

• Level 2: Primary consumers

• Level 3: Secondary consumers

• Level 4: Tertiary consumers

Hotspot

Click on the level of the primary consumers.

Hotspot

Click on the level of the secondary consumers.

Hotspot

Click on the level of the tertiary consumers.

Energy Transformation

The higher up you go, the less energy is available.

Only 10% is transferred to the next organism. (One decimal place to the left.)

The other 90% is lost as heat to the environment or consumed in daily reactions.

Multiple Choice

As you go up a food chain, food web or energy pyramid, energy

• increases

• decreases

Drag and Drop

The plants in this energy pyramid are producing ​

Placeholder

Joules of energy.​ Based on the energy flow between trophic levels in the energy pyramid, the primary consumers would only receive ​

Placeholder

Joules of energy from the producers. You could expect ​

Placeholder

Joules of energy at the tertiary consumer level.

Drag these tiles and drop them in the correct blank above

10,000

100,000

10

1,000

100

Math Response

Type your numerical response in the space. Remember that producers always make the bottom level of the pyramid. You may want to use a scratch paper to show the decimal movement.

Type answer here

Correct Answer: 37

Deg^°

Rad