Symbiotic Relationships

How do mutualistic relationships benefit ecosystems?

• They promote biodiversity and stability by supporting various species.

• They lead to increased competition among species.

• They reduce the availability of resources for other species.

• They create a dependency that harms ecosystem balance.

What is commensalism?

• A relationship between two organisms in which one organism benefits and the other is unharmed.

• A relationship where both organisms benefit from each other.

• A relationship where one organism is harmed and the other is unaffected.

• A relationship where both organisms are harmed.

What is mutualism?

• A relationship between two organisms in which both organisms benefit.

• A relationship where one organism benefits at the expense of another.

• A relationship where both organisms are harmed.

• A relationship where organisms compete for the same resources.

What is an example of a predator/prey relationship?

• A lion hunting a zebra.

• A rabbit eating grass.

• A hawk soaring in the sky.

• A deer grazing in a meadow.

What is an example of parasitism?

• A tick feeding on a dog, benefiting while harming the dog.

• A bird building a nest in a tree without harming it.

• A bee pollinating a flower and receiving nectar in return.

• A lion hunting a zebra for food.

What is the significance of symbiotic relationships?

• They illustrate the interconnectedness of species and their environments.

• They demonstrate competition between species for resources.

• They show how species can evolve independently without interaction.

• They highlight the dominance of one species over another.

How can symbiotic relationships affect evolution?

• They can lead to co-evolution, where species adapt in response to each other.

• They have no impact on evolutionary processes.

• They only affect the physical traits of a species.

• They cause species to become extinct more rapidly.

Give an example of mutualism.

• Yucca flowers being pollinated by yucca moths, where both benefit.

• A lion hunting a zebra for food.

• A bird building a nest in a tree for shelter.

• A parasite living off a host organism.

What is the role of competition in ecosystems?

• It helps regulate populations and resource use among species.

• It promotes biodiversity by allowing all species to thrive equally.

• It leads to the extinction of weaker species only.

• It has no significant impact on ecosystem dynamics.

What is parasitism?

• A relationship where both organisms benefit equally.

• A relationship where one organism benefits at the expense of the other, harming it.

• A relationship where organisms compete for the same resources.

• A relationship where one organism provides shelter for another without harming it.