Ecosystems & Factors
Roles in an Ecosystem
Interactions
Energy Flow
Science Skills & Human Impact
100

This term describes a community of living and nonliving components that interact in an environment.

What is an ecosystem?

100

These organisms make their own food through photosynthesis.

What are producers?

100

This interaction occurs when one organism hunts and eats another.

What is predation?

100

This model shows how energy moves from one organism to another.

What is a food chain?

100

This is a statement based on what is directly seen, measured, or recorded.

What is an observation?

200

Plants, animals, fungi, bacteria, and decomposers are examples of these ecosystem components.

What are biotic factors?

200

These organisms obtain energy by eating other organisms.

What are consumers?

200

This interaction happens when organisms rely on the same limited resources.

What is competition?

200

This is the correct basic pattern of a food chain.

What is Producer → Primary Consumer → Secondary Consumer → Decomposer?

200

This is a conclusion based on observations and prior knowledge.

What is an inference?

300

Sunlight, water, soil, air, temperature, and rocks are examples of these components.

What are abiotic factors?

300

Herbivores, carnivores, and omnivores are types of these organisms.

What are consumers?

300

This interaction benefits both organisms involved.

What is mutualism?

300

This model shows interconnected food chains within an ecosystem.

What is a food web?

300

Temperature readings and number of organisms are examples of this type of data.

What is quantitative data?

400

Both biotic and abiotic factors are necessary for an ecosystem to do this successfully.

What is function?

400

These organisms break down dead materials and return nutrients to the environment.

What are decomposers?

400

This interaction benefits one organism while the other is not significantly affected.

What is commensalism?

400

Energy does this as it moves through an ecosystem.

What is flows?

400

Color, texture, and smell are examples of this type of data.

What is qualitative data?

500

These two types of factors work together to determine what organisms can survive in an ecosystem.

What are biotic and abiotic factors?

500

This role is responsible for recycling nutrients back into the ecosystem.

What are decomposers?

500

This interaction benefits one organism at the expense of another.

What is parasitism?

500

As energy moves through trophic levels, it does this at each level.

What is decreases?

500

Soil compaction, litter, pollution, and plant removal are examples of this.

What is human impact on ecosystems?