Ecosystems & Food Webs

Ecosystems & Food Webs

Ecosystems

• An ECOSYSTEM is a community of interacting organisms and their physical environment.

• THINK ABOUT IT! What are some types of plants/animals that live in the Memphis ecosystem?

Lake Ecosystem

• This is an example of another ecosystem!

• What are some other organisms that might live in this ecosystem?

Multiple Choice

Which of the following organisms (living thing) lives in the same ecosystem as a lion?

Biotic Vs. Abiotic Factors

• Biotic Factors: Living or once living organisms in an ecosystem

• Abiotic Factors: Non-living physical or chemical factors

Multiple Choice

Which of the following is ABIOTIC?

• A human

• A rock

Multiple Choice

Is a dog a biotic or abiotic factor?

• Biotic

• Abiotic

Multiple Choice

Which of the following is a BIOTIC factor?

• A tree

• Water

Multiple Choice

Is temperature a biotic or abiotic factor?

• Biotic

• Abiotic

Multiple Choice

Which of the following terms identifies something that is NOT living?

• Biotic

• Abiotic

Three types of organisms

• Producer

• Consumer

• Decomposer

Producers

Living thing that makes it own food from sunlight, air, and water.

Consumers

Living things that cannot make their own energy. Get energy by eating food. All animals are consumers!

Decomposers

Living things that get energy by breaking down dead plants and animals

Multiple Choice

What is this?

• Producer

• Consumer

• Decomposer

Multiple Choice

What is this?

• Producer

• Consumer

• Decomposer

Multiple Choice

What is this?

• Producer

• Consumer

• Decomposer

Multiple Choice

Which of the following describes organisms that make their own food from sunlight, water, and soil?

• Producer

• Consumer

• Decomposer

Multiple Choice

Which of the following describes all animals?

• Producers

• Consumers

• Decomposers

Multiple Choice

Which of the following best describes organisms that break down dead plants and animals for energy?

• Producers

• Consumers

• Decomposers

Food Chains

• Shows what eats what

• Typically starts with a producer

• THINK ABOUT IT: What is the producer in this food chain?

• THINK ABOUT IT: What does the thrush (bird) eat?

Multiple Choice

True or False: The snake eats the eagle (bird)

• True

• False

Multiple Choice

Which of the following is the producer?

• Grasshopper

• Frog

• Grass

• Snake

Multiple Choice

What does the frog eat?

• Grass

• Grasshoppers

• Snakes

Multiple Choice

What do the mice eat?

• Grains

• Grasshoppers

• Owls

• Carrots

Multiple Choice

What eats mice?

• Grains

• Grasshoppers

• Owls

• Carrots

Multiple Choice

Which of the following is a producer?

• Grasses

• Rabbits

• Owls

• Birds