Biology Fall Final Review 2024

Front

What is the ultimate source of energy for ecosystems?

Back

Sunlight is the ultimate source of energy for ecosystems, as it drives photosynthesis in plants.

Front

In an experiment, what is the independent variable?

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 an example of a topic studied in biology?

Back

Communication among birds is an example of a topic studied in biology.

Front

How do you determine population density?

Back

Population density is determined by dividing the number of individuals of a species by the area they occupy.

Front

What is a potential benefit of studying rainforest plants?

Back

Rainforest plants may hold medicines to treat human diseases.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is an ecosystem?

Back

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

Front

What is the role of producers in an ecosystem?

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Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

What is a 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 is biodiversity?

Back

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