Ecosystems EOC Questions

Front

What is mutualism?

Back

A symbiotic relationship where both species benefit, such as a flower providing nectar to an insect while the insect helps pollinate the flower.

Front

What is the main function of stomata in plants?

Back

Stomata are small openings on the leaves that facilitate gas exchange, allowing carbon dioxide in and oxygen out.

Front

What happens to energy as it flows from lower to higher trophic levels in an ecosystem?

Back

Energy decreases because some of the energy is used during the life processes of organisms.

Front

Which trophic level has the least amount of energy available in an energy pyramid?

Back

The highest trophic level (IV) has the least amount of energy available.

Front

What is the impact of introducing a non-native predator, like lionfish, into a new ecosystem?

Back

The lionfish population can decrease the native fish population by preying on them.

Front

Define competition in an ecosystem.

Back

Competition occurs when two or more species vie for the same resources, such as food, space, or light.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

Explain the concept of a food chain.

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, defined by how an organism obtains its energy.

Front

What role do decomposers play in an ecosystem?

Back

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