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Category 1

100

A _____ is the role a population has in its habitat.

A. niche

B. decomposers

C. exotic

A. niche

200

The prairie is a ____ for animals such as snakes, hawks, bison, and mice. 

A. Ecosystem

B. Habitat

C. Producer 

B. Habitat

300

Green plants are _____, or organisms                         that make their own food. 

A. Community

B. Producers

C. Consumer

B. Producers

400

In a healthy ecosystem, populations of living things are—

1. Independent

2. Enemies

3. Interdependent

4. Large

3. Interdependent

500

Different kinds of organisms sharing a long-term, close relationship is called _____.

A. Symbiosis

B. Population

C. Endangered

A. Symbiosis

Category 2

100

Dead organisms are broken down by ____.

A. Habitat

B. Decomposer

C. Population

B. Decomposer

200

What do the producers in a community do?

1. Hunt prey

2. Decompose organisms

3. Eat other organisms

4. Make food

Make food

300

Organisms take part in ____ for the limited amount of resources in an ecosystem. 

A. Symbiosis

B. Competition

C. Food Chain

B. Competition

400

The types and number of animals in an ecosystem are determined by the–

1. Types and number of plants

2. Types and numbers of communities

3. Types and numbers of individuals

4. Population density

Types and number of plants

500

A cleaner fish picks bits of food from between a shark’s teeth. This relationship is an example of—

1. Independence

2. Competition

3. Mutualism

4. Camouflage

• Mutualism

Category 3

100

“Shaking hands” and “playing dead” are examples of _______ in dogs.

A. Consumers

B. Instinct 

C. Learned Behavior

C. Learned Behavior

200

An ecosystem is made up of a community and its–

1. Population

2. Environment

3. Niche

4. Landforms

2. Environment

300

An ____ is a single member of a ____.

A. Individual & Community 

B. Community & Individual

C. Individual & Population

C. Individual & Population

400

Behaviors for building shelters, finding mates, and hunting are usually–

1. Learned

2. Symbiotic

3. Competitive

4. Instinctive

Instinctive

500

What percentage of energy at any level of a food chain is passed on to the next higher level?

1. About 10%

2. About 90%

3. It depends on the population

4. It depends on the community

About 10%

Category 4

100

A population that begins to decline may be listed as ____.

A. Extinct

B. Threatened

C. Endangered 

B. Threatened

200

 In a food chain, each level of consumer eats organisms—

1. From the level above it

2. From the level below it

3. In the same niche

4. In the same population

From the level below it

300

A ____ consists of all the populations of organisms in an ____.

A. Communityl & Population

B. Community & Ecosystem

C. Individual & Population

B. Community & Ecosystem

400

Different organisms can share the same resources, such as a tree, because they have different–

1. Population

2. Niches

3. Communities

4. Ecosystems

Niches

500

Producers will always be the first organisms in any ____.

A. Food Chain

B. Competition

C. Consumer

A. Food Chain

Category 5

100

An organism is ____ when all individuals are dead.

A. Endangered

B. Threatened

C. Extinct

C. Extinct 

200

An ____ shows the amount of energy available at each level of a food chain. 

A. Food Web

B. Food Chain

C. Energy Pyramid

C. Energy Pyramid

300

A ____ shows the feeding relationships among food chains.

A. Food Chain

B. Food Web

C. Energy Pyramid

B. Food Web

400

A non-native organism brought into a country is called _____.

A. Niche

B. Native

C. Exotic

C. Exotic

500

Organisms that eat other living things to survive are called ___.

A. Producers

B. Consumers

C. Population

B. Consumers