Env Sci Final Exam Review

Front

What is a primary consumer?

Back

A primary consumer is an organism that feeds on primary producers (plants) in a food web. Examples include herbivores like rabbits and deer.

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What is a secondary consumer?

Back

A secondary consumer is an organism that feeds on primary consumers. Examples include carnivores like foxes and birds of prey.

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What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle matter in the ecosystem.

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What is transpiration in plants?

Back

Transpiration is the process by which water evaporates from the surface of leaves, contributing to water movement within the plant and the water cycle.

Front

Define the benthic zone in aquatic ecosystems.

Back

The benthic zone is the lowest layer of a body of water, where organisms like scavengers and decomposers live on the bottom.

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What is biomass?

Back

Biomass refers to organic material derived from living or recently living organisms, which can be used as a source of energy.

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What is the function of turbines in a fossil fuel power plant?

Back

Turbines convert the energy from steam (produced by boiling water) into mechanical energy, which is then used to generate electricity.

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What is the difference between evaporation and transpiration?

Back

Evaporation is the process of water turning into vapor from any surface, while transpiration specifically refers to water vapor loss from plant leaves.

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What is the limnetic zone in a lake?

Back

The limnetic zone is the open water area of a lake where sunlight penetrates, allowing photosynthesis to occur, and is home to various fish and plankton.

Front

What is the littoral zone in aquatic ecosystems?

Back

The littoral zone is the nearshore area of a lake or pond where sunlight reaches the bottom, supporting diverse plant and animal life.