Biology: Practice  Ecosystems & Biotic Relations quiz

Name ______________________

Place the letter of the best answer in the blank beside the question number.

_______ 1.

Study of interactions between organisms and the components of their environment

.

A. ecosystem

B. ecology

C. biome

D. none of these

 

_______ 2.

The most significant environmental change brought about my humans

.

A. global warming

B. ozone depletion

C. mass extinctions

D. none of these

 

_______ 3.

The mechanism that insulates Earth from the cold of space

.

A. greenhouse effect

B. global warming

C. ozone layer

D. none of these

 

_______ 4.

All the organisms and nonliving environment in a particular place

.

A. biome

B. habitat

C. ecosystem

D. none of these

 

_______ 5.

The nonliving components of an environment

.

A. biotic

B. abiotic

C. habitat

D. none of these

 

_______ 6.

The success of life in the ecosystem is determined by these interactions

.

A. biotic

B. abiotic

C. both of these

D. none of these

 

_______ 7.

The energy and materials that a species needs are known as

.

A. regulators

B. resources

C. community

D. none of these

 

_______ 8.

The broadest, most inclusive level of environmental organization

.

A. habitat

B. niche

C. biome

D. none of these

 

_______ 9.

The ozone layer protects the Earth by absorbing

.

A. heat

B. pollution

C. sunlight

D. none of these

 

_______ 10.

All the members of a species that live in one place at one time

.

A. population

B. community

C. ecosystem

D. none of these

 

Matching questions - place the letter of the term in the right column that best fits the definition in the blank by the definition.

_______ 1. The physical area in which an organism lives.

A. symbiosis

_______ 2. The way of life of an organism.

B. predation

_______ 3. Use solar or chemical energy to produce their own food.

C. habitat

_______ 4. Break down dead tissues and wastes.

D. secondary
consumers

_______ 5. Interrelated food chains within an ecosystem.

E. niche

_______ 6. Relationship between a predator and its prey.

F. decomposers

_______ 7. A group of individuals of the same species living in the same area.

G. producers

_______ 8. Maximum number of individuals an ecosystem can support.

H. population

_______ 9. A close association between two dissimilar organisms.

I. food web

_______ 10. Organisms that prey on primary consumers.

J. carrying
capacity

11. Compare and contrast parasitism and commensalism.

.

.

.

.

.

. 12. Draw a food chain including specific organisms for the following:
one primary producer, two primary consumers, and one secondary consumer.

.

.

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