Polar Food Chains

Question 1

Which of the following shows the correct Antarctic food chain from the smallest organism to the top predator?

Accepted Answer

phytoplankton → krill → penguin → leopard seal

Answer

phytoplankton → penguin → krill → leopard seal

Answer

krill → phytoplankton → penguin → leopard seal

Answer

phytoplankton → krill → fish → leopard seal

Question 2

Liam wrote an Arctic food chain using five organisms: algae, zooplankton, fish, seal, and polar bear. He listed them in this order: algae → fish → zooplankton → seal → polar bear. Which statement best explains why Liam’s chain is not correct?

Accepted Answer

Because zooplankton eat the algae first, then fish eat the zooplankton; the correct order is algae → zooplankton → fish → seal → polar bear.

Answer

Because seals eat algae directly, so the chain should be algae → seal → fish → zooplankton → polar bear.

Answer

Because polar bears eat fish before seals, the order should be algae → zooplankton → fish → polar bear → seal.

Answer

Because zooplankton are the top predators, they should be at the end of the chain.

Question 3

Which list shows the Arctic food chain in the correct order, from the smallest organism up to the top predator?

Accepted Answer

algae → zooplankton → fish → seal → polar bear

Answer

algae → fish → zooplankton → seal → polar bear

Answer

algae → zooplankton → seal → fish → polar bear

Answer

algae → zooplankton → fish → polar bear → seal

Try three questions

Which of the following shows the correct Antarctic food chain from the smallest organism to the top predator?

Liam wrote an Arctic food chain using five organisms: algae, zooplankton, fish, seal, and polar bear. He listed them in this order: algae → fish → zooplankton → seal → polar bear. Which statement best explains why Liam’s chain is not correct?

Which list shows the Arctic food chain in the correct order, from the smallest organism up to the top predator?

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