Which of the following is an example of an abiotic factor?

• Trees

• Birds

• Sunlight

• Fish

What is necessary for plants and animals to live and grow?

• Only living things

• Only nonliving things

• Both living and nonliving things

• Neither living nor nonliving things

Which of the following groups do bacteria belong to in an ecosystem?

• Producers

• Consumers

• Decomposers

• Predators

What term describes the way living things in an ecosystem rely on each other?

• Interdependent

• Independent

• Isolated

• Separated

What is the main idea of the text about relationships in an ecosystem?

• Living things in an ecosystem are interdependent

• Living things in an ecosystem are independent

• Living things in an ecosystem are isolated

• Living things in an ecosystem are competitive

What happens if living things in an ecosystem do not depend on each other?

• The ecosystem may not function properly

• They will become friends

• They will find more food

• They will build more homes

Which of the following is NOT a characteristic of living things in an ecosystem?

• Being isolated

• Having a job to do

• Being interdependent

• Depending on each other

How do living things in an ecosystem meet their needs?

• By depending on each other

• By living alone

• By competing with each other

• By ignoring each other

What is the significance of the term "interdependent" in an ecosystem?

• It means living things rely on each other

• It means living things live alone

• It means living things compete with each other

• It means living things ignore each other

Which of the following is NOT a role of producers?

• Making their own food

• Using sunlight for energy

• Decomposing organic material

• Being a source of food for other organisms