LS.8 Level 1

What is a biotic factor in an ecosystem?

• Water

• Sunlight

• Fish

• Rocks

Tags

VA.LS.7.a

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

• Algae

• Temperature

• Frogs

• Insects

Tags

VA.LS.7.a

What characteristic allows a cactus to survive in a desert ecosystem?

• Thick leaves

• Deep roots

• Ability to store water

• Bright flowers

Tags

VA.LS.7.b

Which of the following is a physical characteristic that helps fish survive in water?

• Sharp claws

• Gills

• Feathers

• Long legs

Tags

VA.LS.7.b

Identify an abiotic factor that affects marine ecosystems.

• Coral reefs

• Salinity

• Seaweed

• Fish

Tags

VA.LS.7.a

Which of the following is a behavioral characteristic that helps birds survive in their ecosystem?

• Migration

• Photosynthesis

• Camouflage

• Hibernation

Tags

VA.LS.7.b

What is an example of a biotic factor in a land ecosystem?

• Soil

• Trees

• Wind

• Rocks

Tags

VA.LS.7.a

Which abiotic factor is crucial for photosynthesis in plants?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

Tags

VA.LS.7.a

What adaptation helps polar bears survive in cold environments?

• Long necks

• Thick fur

• Webbed feet

• Bright colors

Tags

VA.LS.7.b

Which of the following is an abiotic factor that influences land ecosystems?

• Grass

• Temperature

• Birds

• Insects

Tags

VA.LS.7.a