Semester 1 Final Exam 24

Front

What is a population in ecology?

Back

A population is a group of organisms of the same species that live in the same area at the same time.

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a herbivore?

Back

A herbivore is a consumer that primarily eats plants.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by the independent variable.

Front

What percentage of energy typically transfers from one trophic level to the next?

Back

Approximately 10% of energy transfers from one trophic level to the next.

Front

Define autotroph.

Back

An autotroph is an organism that produces its own food, typically through photosynthesis or chemosynthesis.

Front

What is an ecosystem?

Back

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

Front

What is a community in ecology?

Back

A community is a group of different species that live together in one area.

Front

Explain the concept of trophic levels.

Back

Trophic levels represent the hierarchical levels in an ecosystem, where organisms are classified based on their feeding relationships.

Front

What is a producer?

Back

A producer is an organism that can make its own food, usually through photosynthesis, and serves as a food source for consumers.