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Ecological Relationships Worksheet

Explore the fascinating world of ecological relationships, including predation, competition, symbiosis, and their impact on ecosystems.

Grade 7 Science BiologyEcological Relationships
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Multiple ChoiceTrue / FalseFill in the BlanksShort AnswerMatchingLong Answer

Standards

MS-LS2-2MS-LS2-3MS-LS2-4

Topics

ecologybiologyecosystemfood websymbiosisgrade 7
8 sections · Free to use · Printable
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Ecological Relationships

Name:

Date:

Score:

Read each question carefully and answer to the best of your ability. Good luck!

1. What is the term for a relationship where one organism benefits and the other is harmed?

a

Mutualism

b

Commensalism

c

Parasitism

d

Competition

2. Which of the following is an example of a producer?

a

Lion

b

Grass

c

Rabbit

d

Fungus

3. A food web shows only one path of energy flow in an ecosystem.

T

True

F

False

4. Commensalism is a relationship where both organisms benefit.

T

True

F

False

5. An organism that eats other organisms for energy is called a  .

6. The relationship between a clownfish and a sea anemone, where both benefit, is an example of  .

7. Observe the food web below. Identify one producer, one primary consumer, and one secondary consumer.

Food Web Diagram

Producer:  

Primary Consumer:  

Secondary Consumer:  

Match each ecological relationship with its definition.

8. Mutualism

 

a. One organism benefits, the other is harmed.

9. Predation

 

b. Both organisms benefit.

10. Competition

 

c. One organism hunts and kills another for food.

11. Commensalism

 

d. Organisms struggle for the same limited resources.

12. Describe how a change in the population of one organism in a food web can affect other organisms in the same food web. Provide a specific example.