Ecosystems
Sources of Energy
Food Chains
Food Webs
Matter in Ecosystems
100

What is an ecosystem?

A community of living organisms and their interactions with their environment.

100

What is the primary source of energy for most ecosystems?

The sun.

100

What is a food chain?

A series of organisms each dependent on the next as a source of food.

100

What is a food web?

A system of interlocking and interdependent food chains.


100

What is matter?

Anything that has mass and takes up space.

200

Name one type of ecosystem.

Forest, desert, ocean, grassland, etc.

200

How do plants get their energy?

Photosynthesis

200

What is a consumer?

An organism that eats other organisms for energy.

200

How is a food web different from a food chain?

A food web consists of many food chains and shows the multiple pathways through which energy and matter flow in an ecosystem.

200

Give an example of matter in ecosystems?

Plants, animals, dirt, trees, etc.

300

What type of ecosystem would a frog live in?

Rainforest, swamp
300

What is photosynthesis?

The process plants, algae, and some bacteria use to convert sunlight, water, and carbon dioxide into their own food (sugars) and oxygen

300

What is a carnivore

An organism that eats meat.

300

Why are food webs important?

They help to explain the way organisms(producers, consumers, etc.) connect to each other.

300

What is the role of decomposers in matter cycling?

To break down dead organic material, returning nutrients back to the environment.

400

What type of ecosystem would a cactus thrive in?

Desert

400

What is a producer?

An organism that creates its own food, forming the base of an ecosystem's food chain.

400

What is an herbivore?

An animal that only eats plants.
400

What role would a bunny play in my food web?

a. decomposer

b. producer

c. consumer

consumer

400

What is the water cycle?

the continuous movement of water on, above, and below Earth's surface, driven by the sun's energy and gravity.

500

How do ecosystems change?

Through ecological succession

The process of communities replacing one another, and through disturbances that cause disruption

500

Name a non-solar energy source?

wind, tidal energy, fossil fuels, etc.

500

Give an example of a food chain

grass → grasshopper → mouse → snake → hawk

500
Explain the role of decomposers.

To break down dead organic matter, such as plants and animals.

500

How do plants and animals contribute to the carbon cycle?

Plants remove carbon dioxide from the atmosphere through photosynthesis and animals returning it through respiration.