In a marine ecosystem, which organism is a producer?

Study for the North Carolina Grade 8 End-of-Grade Science Test. Prepare with multiple choice questions, each question has hints and explanations. Ace your exam!

Multiple Choice

In a marine ecosystem, which organism is a producer?

Explanation:
In ecosystems, producers are organisms that make their own food using energy from the sun. In a marine setting, algae perform photosynthesis, turning sunlight and carbon dioxide into sugars that provide energy for many other organisms. This makes algae the base of the food web. The other organisms—fish, gulls, and worms—are consumers; they obtain energy by eating other organisms or organic matter rather than making their own food. So algae is the best choice because it can produce energy-rich food that supports the rest of the ecosystem.

In ecosystems, producers are organisms that make their own food using energy from the sun. In a marine setting, algae perform photosynthesis, turning sunlight and carbon dioxide into sugars that provide energy for many other organisms. This makes algae the base of the food web. The other organisms—fish, gulls, and worms—are consumers; they obtain energy by eating other organisms or organic matter rather than making their own food. So algae is the best choice because it can produce energy-rich food that supports the rest of the ecosystem.

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