Understanding Ecosystems

What is an ecosystem?

• A place with only plants

• A system of living and non-living things interacting

• A type of weather

• A kind of animal.

In an ecosystem, each organism has its own ______.

• color

• niche

• size

• shape

The absence of one member in an ecosystem can affect:

• Only plants

• Only animals

• All parties of the ecosystem

• None of the above.

In the pond ecosystem, which of these is a consumer?

• A) Sun

• B) Water weeds

• C) Fish

• D) Soil

What is the most important need for all living organisms because it is the source of all energy?

• Water

• Sunlight

• Air

• Food

Living things need energy for function. What provides this energy?

• Water

• Sunlight

• Food

• Air

What are the factors called that can prevent a living organism from surviving in their environment?

• Limiting factors

• Basic needs

• Environmental factors

• Survival factors

Fill in the blank: Water is also a living environment for many ______ and animals.

• Plants

• Birds

• Insects

• Reptiles

Fill in the blank: Too cold or too hot? Every living organism needs the right ______ to survive.

• Temperature

• Water

• Sunlight

• Air

Which of the following is a limiting factor that can affect living organisms?

• Sunlight

• Soil

• Water

• All of the above