Grade 7 - Biology - Quiz 2 - Food Webs/Ecosystems Relationships

What is the purpose of a food chain?

• To convert energy from the sun into food

• To describe how organizations get energy from eating other organizations

• To produce energy for the ecosystem

• To help put nutrients back into the soil

What is the role of plants in a food chain?

• They decompose nutrients

• They produce energy for the ecosystem

• They are primary consumers

• They are secondary consumers

What do animals in a food chain consume?

• Nutrients from the soil and water

• Only other animals

• Plants and other animals

• Only plants

What are secondary consumers in a food chain?

• Birds

• Plants

• Worms

• Seeds

What do decomposers do in a food chain?

• Produce energy for the ecosystem

• Eat plants and other animals

• Help put nutrients back into the soil

• Convert energy from the sun into food

What are the top predators in a food chain?

• Grasshoppers

• Bears and orcas

• Wolves

• Snakes

What is the main source of energy in a food chain?

• The soil

• The sun

• Animals

• Plants

What is the difference between a food chain and a food web?

• A food chain has more levels than a food web

• A food chain includes decomposers, while a food web does not

• A food web includes more organisms than a food chain

• A food web only includes plants and animals, while a food chain includes all living things

What is the role of chlorella in a food chain?

• To provide energy for the body

• To produce energy for the ecosystem

• To help put nutrients back into the soil

• To convert energy from the sun into food

What is the hierarchy of organisms in a food chain?

• Plants, primary consumers, secondary consumers, top predators

• Top predators, secondary consumers, primary consumers, plants

• Plants, secondary consumers, primary consumers, top predators

• Secondary consumers, primary consumers, plants, top predators