Q: What type of organisms are the most important in Antarctica's ecosystem?

A Whales
B Penguins
C Plankton
D Krill

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Answer: D

Explanation:

Krill are the most important organisms in Antarctica's ecosystem.
They are small shrimp-like crustaceans that play a crucial role in the food chain.
Many animals, including whales, penguins, and seals, depend on krill as their primary food source.
While whales and penguins are significant species in Antarctica, they rely on krill as their main food, making krill more essential to the overall ecosystem.
Plankton refers to a broad category of organisms, including both plant-like (phytoplankton) and animal-like (zooplankton) organisms, which are an important food source for krill.

Q: What type of organisms are the most important in Antarctica's ecosystem?

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