9-29-23 4.3 Ecosystems Warmup

An ecosystem is an area where living and nonliving organisms interact.

• true
• false

Which of the following is considered nonliving?

• water
• bush
• worm
• bird

What is a population?

• all the living and nonliving things in an area
• all the organisms of the same species (type) living in the same place at the same time
• all the organisms of all types living together in the same place
• a household of pets

A __________ is all the populations that live in the same place at the same time together.

• population
• community
• ecosystem
• niche

What part of an ecosystem food web has the greatest amount of energy?

• producers
• consumers

The arrows in a food chain always show the __________ .

• flow of energy
• way sunlight moves
• how plants grow

How are food chains and food webs different?

• A food web illustrates the interconnected and overlapping food chains in an ecosystem.
• They are the same thing.
• Food chains are larger.
• Food webs show the flow of energy for only one species.

A habitat is the place where an animal or plant naturally lives.

• true
• false

A ______ is the function or role that an organism performs in the food web of that community.

• habitat
• community
• niche
• ecosystem