PSSA Food Webs and Pyramids 2

Which of the following animals might eat the snake?

• a mouse

• a red tailed hawk

• a producer

• a caterpillar

According to the 10% rule, how many kilocalories would be available at trophic level 3?

• 10 kcal

• 100 kcal

• 1 kcal

• 1,000 kcal

And at the trophic level 4?

• 10 kcal

• 100 kcal

• 1 kcal

What would happen to the frog in this situation?

• the frog could make her own food

• the frog might die without her food source

• the frog could eat the snake

What could happen to the population of frogs if the apex predator was removed in this example? A hint is given where the video pauses.

• The frogs might become the new apex predator in this community.

• The population of frogs would increase too much and there would not be enough grasshoppers for them all

• The frogs might change color and attract a different type of preditor

List one of the food chains in this web. Remember to begin with a producer and end with the snake. 

True of False: BIODEVERSITY is important for the long term success of an ecosystem. 

• false

• true

Which example has more biodiversity?

• Food Chain

• Food Web