Ecosystem Interactions Quiz

What do organisms compete for in ecosystems?

• Air, food, shelter, water, and space

• Only food and water

• Only shelter and space

• Only sunlight and air

How do interactions within an ecosystem help organisms?

• They help keep populations in balance

• They make organisms fight more

• They reduce the need for resources

• They eliminate competition

What happens to plants if they do not have enough space to grow?

• They will not reach their full height and width

• They will grow faster

• They will produce more flowers

• They will need less water

What is an example of an environmental factor affecting competition for resources?

• Limited resources affecting a gray fox's ability to grow

• Unlimited resources for all organisms

• Resources only affecting plants

• Resources only affecting animals

What can genetic factors affect in an organism?

• Ability to survive

• Ability to fly

• Ability to swim

• Ability to hibernate

What is a food web used to show?

• Interactions between living things in an ecosystem

• How plants grow

• How animals sleep

• How water cycles

What do the arrows in a food web indicate?

• Transfer of energy and matter

• Direction of wind

• Flow of water

• Movement of soil

Which trait can affect an animal's ability to catch food or avoid being eaten?

• Leg length

• Eye color

• Tail size

• Ear shape

What can feather color provide for an animal?

• Camouflage or attraction for a mate

• Better vision

• Faster speed

• Stronger wings

What is the purpose of competition in ecosystems?

• To keep the ecosystem healthy

• To increase the number of predators

• To reduce the number of plants

• To eliminate all competition