Ecology Review Practice

Front

What is the effect of a sudden increase in the cricket population on the grass and flowers population?

Back

There would be a decrease in the grass/flowers population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Front

What group of organisms provides the most energy in an ecosystem?

Back

Producers.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is the main reason for energy loss at each trophic level in an energy pyramid?

Back

Energy is lost as heat due to metabolic processes.

Tags

NGSS.MS-LS2-3

Front

What would happen to a food chain if the grass suddenly died?

Back

Everything would die.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

Which of the following is considered a biotic factor?

Back

Bacteria.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Front

Define 'producers' in an ecological context.

Back

Organisms that produce energy through photosynthesis or chemosynthesis, forming the base of the food chain.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What role do consumers play in an ecosystem?

Back

Consumers obtain energy by eating other organisms, including plants and animals.

Tags

NGSS.MS-LS2-3

Front

Explain the concept of a trophic level.

Back

A trophic level is a position in a food chain or food web, defined by how an organism obtains its energy.

Tags

NGSS.MS-LS2-3

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil.

Tags

NGSS.MS-LS2-3

Front

How does energy flow through an ecosystem?

Back

Energy flows from producers to consumers and then to decomposers, with energy loss at each trophic level.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3