Biology EOC Review - Ecology

Front

What is an ecosystem?

Back

A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.

Front

What symbols best describe parasitism?

Back

Parasitism is represented by the symbols +,-.

Front

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

Back

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

Front

What type of growth does a graph showing a J-shaped curve represent?

Back

Exponential growth.

Front

What happens to energy when it moves from one trophic level to the next?

Back

Some energy is always lost as heat.

Front

Define a population in ecological terms.

Back

A population is a group of individuals of the same species living in a specific area.

Front

What is a community in ecology?

Back

A community is made up of all the different populations that live together in a defined area.

Front

What is the difference between a habitat and an ecosystem?

Back

A habitat is the natural environment where an organism lives, while an ecosystem includes both the living (biotic) and nonliving (abiotic) components.

Front

What is the role of producers in an ecosystem?

Back

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

Front

What is a trophic level?

Back

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