Ecosystems and the Chesapeake Bay Quiz

Which of the following is an example of a biotic factor in a freshwater ecosystem?

• Water temperature

• Fish

• Sunlight

• Rocks

Tags

VA.LS.7.a

Which of the following best describes the Chesapeake Bay?

• A mountain range

• An estuary

• A desert

• A rainforest

Tags

VA.6.8.c

Which of the following is an abiotic factor in a land ecosystem?

• Grass

• Soil

• Deer

• Trees

Tags

VA.LS.7.a

Which of the following is a possible result of a change in habitat?

• Increase in population

• Disturbance of populations

• No effect on populations

• Creation of new species

Tags

VA.LS.9.a

Which of the following is an important function of the Chesapeake Bay?

• It is a source of fresh drinking water for the entire United States

• It provides habitat for many species

• It is a mountain formation

• It is a desert ecosystem

Tags

VA.6.8.c

Which of the following best defines a watershed?

• A place where animals sleep

• Land that drains into a body of water

• A type of plant

• A weather pattern

Tags

VA.6.8.a

Which of the following is an example of human activity that can disturb populations in a habitat?

• Planting native trees

• Building roads through forests

• Observing animals quietly

• Protecting wetlands

Tags

VA.LS.9.a

Which of the following is a biotic factor in a marine ecosystem?

• Salt concentration

• Seaweed

• Water current

• Sand

Tags

VA.LS.7.a

Given a list of factors—sunlight, fish, water, and algae—identify which are abiotic and which are biotic in a pond ecosystem.

• Sunlight and water are biotic; fish and algae are abiotic

• Sunlight and water are abiotic; fish and algae are biotic

• All are biotic

• All are abiotic

Tags

VA.LS.7.a

A new factory is built near a river. Predict how this could affect the river’s watershed.

• It will have no effect on the watershed

• It could introduce pollutants that drain into the river

• It will make the river flow faster

• It will increase the number of fish

Tags

VA.6.8.a