APES Unit 1 Review - The Living World: Ecosystem

Front

Why is the ocean important to the carbon cycle?

Back

The ocean keeps sediment containing carbon underwater for millions of years.

Front

A relationship between two organisms in which one organism benefits and the other is unharmed is called?

Back

Commensalism.

Front

Red-billed oxpeckers feed on parasites that infest impala. This is an example of?

Back

Mutualism.

Front

97% of the water on earth is what type, making it undrinkable for humans?

Back

Salt water.

Front

What is a producer?

Back

An organism that uses sunlight to make its own food.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic material, recycling nutrients back into the ecosystem.

Front

Define biodiversity.

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the significance of keystone species?

Back

Keystone species have a disproportionately large impact on their environment relative to their abundance.