Environemental Systems Semester Exam Review

Front

When energy is transferred between trophic levels, what percentage of available energy is typically lost?

Back

90 percent.

Front

What is an example of a question that can be addressed by science?

Back

What percent of people prefer roses to tulips?

Front

What is a cost-benefit analysis?

Back

A comparison between what is sacrificed and gained by a specific action.

Front

What are the basic units of matter?

Back

Atoms.

Front

What is the main goal of Species Survival Plans?

Back

To manage, protect, and reintroduce threatened and endangered species.

Front

What is the definition of a trophic level?

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

Front

What is biodiversity?

Back

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

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms and their physical environment interacting as a system.

Front

What is the significance of keystone species?

Back

Keystone species are crucial for maintaining the structure of an ecological community.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of Earth’s surface due to the trapping of heat by greenhouse gases.