Food Webs and Energy Pyramids: Bedrocks of Biodiversity (Amoeba Sisters)

Which of the following statements is TRUE about producers?

• They're also called heterotrophs.

• They're found at the top of a food chain.

• They make their own food.

• They have to eat food to get energy.

What direction do the arrows point in a food chain/food web?

• The arrows point towards the organism that is eating.

• The arrows point towards the organism that is being eaten.

• You can have the arrows point in either direction - it doesn't matter.

• There are no arrows in food chains/food webs.

What happens to the other 90% of the energy from the level below?

• It's returned to the level below.

• It's lost as heat.

• It produces light.

How much energy would the tertiary consumers (on trophic level 4) receive?

• 10 Kcal

• 100 Kcal

• 1,000 Kcal

In this scenario, where the snakes disappear and you end up with large numbers of frogs, what do you think would happen to the number of grasshoppers?

• Nothing - the number of grasshoppers would stay the same.

• The number of grasshoppers would also increase.

• The number of grasshoppers would decrease since there are more frogs to eat them.

• There are no grasshoppers in this example

Which is the most accurate way to represent what an organism eats in an ecosystem?

• Food chain

• Food web

• Phylogenetic tree (branching tree diagram)

According to this food web, which of the following organisms is an OMNIVORE (eats both plants and animals)?

• The rabbit

• The bird

• The grasshopper

• The snake

Which has more biodiversity?

• Food chain

• Food web

• They have equal amounts of biodiversity