Ecosystems and Their Components

What is a population in ecological terms?

• A single organism

• A collection of ecosystems

• All members of one species living in an area

• A group of different species living together

How is a community different from a population?

• It includes only plants

• It consists of multiple species living together

• It is a non-living environment

• It is a single species living in an area

What makes up an ecosystem?

• Only animals

• Only plants

• Only water and air

• Living and non-living things

What are biotic factors in an ecosystem?

• Rocks and soil

• Sunlight and shelter

• Water and air

• Plants and animals

What role do producers play in an ecosystem?

• They break down dead matter

• They make their own food

• They provide shelter

• They eat other animals

Which of the following is a herbivore?

• Frog

• Shark

• Koala

• Lion

What do decomposers do in an ecosystem?

• Provide sunlight

• Break down dead plants and animals

• Eat only plants

• Create their own food

Which of these is an example of an omnivore?

• Ant

• Snake

• Grizzly bear

• Horse

What is the main source of energy for most ecosystems?

• Soil

• Sunlight

• Air

• Water

What are abiotic factors in an ecosystem?

• Animals and plants

• Bacteria and fungi

• Rocks, air, and water

• Decomposers