Ecological Relationships

Multiple Choice

Which of the following best describes biodiversity?

• The total number of organisms in an area

• The variety and number of species in an area

• The amount of sunlight an area receives

• The number of trees in a forest

Open Ended

Why is biodiversity important for ecological relationships and the stability of ecosystems?

Open Ended

What comes to mind when you think of the word 'Relationship'?

Open Ended

Why are ecological relationships important for the biodiversity and health of an ecosystem?

Multiple Select

Which of the following are major types of interactions among organisms in an ecosystem?

• Competition

• Migration

• Predation

• Symbiosis

Multiple Select

Which of the following are examples of resources that organisms might compete for?

• Food

• Water

• Light

• Space

Multiple Choice

What is competition in an ecological context?

• When organisms cooperate for resources

• When two or more organisms seek the same limited resource

• When organisms avoid each other

• When organisms share resources equally

Open Ended

Describe how competition and predation act as limiting factors in an ecosystem.

Multiple Select

Based on the food web, which organisms compete with the mouse?

• Cricket

• Rabbit

• Deer

• Snake

Multiple Choice

What will happen to the grass population if the mouse population decreases?

• Increase

• Decrease

• Stay the same

• Disappear

Multiple Choice

Which of the following is NOT a type of symbiotic relationship?

• Mutualism

• Commensalism

• Parasitism

• Predation

Open Ended

Explain how mutualism benefits both organisms involved, using examples from the images provided.

Multiple Choice

Which of the following are examples of mutualism?

• A bee pollinating a flower

• A clownfish hiding in a sea anemone

• A tick feeding on a dog

• A remora fish riding on a shark

Open Ended

Describe the relationship between the clownfish and the sea anemone. How does this relationship fit the definition of commensalism?

Multiple Choice

Which type of symbiotic relationship is described as one species benefiting while the other is harmed?

• Parasitism

• Mutualism

• Commensalism

• Predation

Open Ended

Explain how a tapeworm interacts with its host and the consequences for both organisms.

Multiple Select

Select all correct statements about parasites based on the images: 1) Parasites benefit from their hosts. 2) Parasites always kill their hosts immediately. 3) Parasites often attach to digestive tracts. 4) Parasites can be found in fungi.

• 1 and 3 only

• 2 and 4 only

• 1, 3, and 4

• All of the above

Open Ended

What is the main difference between commensalism, mutualism, and parasitism?

Open Ended

Which community has more biodiversity? Justify your answer.