Understanding Symbiosis

The video explores the concept of symbiosis, focusing on three types: parasitism, commensalism, and mutualism. Parasitism is illustrated through Rookie the dog's fleas, which harm him while benefiting the fleas. Commensalism is shown with examples like birds nesting in trees, where one organism benefits without harming the other. Mutualism is highlighted with examples such as the Egyptian Plover and crocodiles, where both organisms benefit. The video concludes by summarizing these symbiotic relationships and their impact on organisms.

What is the main reason fleas bite Rookie?

• For shelter

• For companionship

• For protection

• For food

Which of the following is an example of parasitism?

• A bird building a nest in a tree

• A flower climbing a tree

• A bee pollinating a flower

• Barnacles on whales

In commensalism, how is the tree affected by the bird's nest?

• The tree is unaffected

• The tree benefits

• The tree provides food

• The tree is harmed

Which relationship is an example of mutualism?

• A bird eating parasites from a crocodile

• A flower climbing a tree

• Fleas on a dog

• Barnacles on a whale

How does the bee benefit from its relationship with the flower?

• It gets protection

• It gets pollen to make honey

• It gets shelter

• It gets water

What is the main characteristic of mutualism?

• Neither organism benefits

• One organism benefits, the other is harmed

• Both organisms benefit

• One organism benefits, the other is unaffected

Which type of symbiosis involves one organism benefiting while the other is not affected?

• Competition

• Commensalism

• Mutualism

• Parasitism

What is the role of Rookie in the parasitic relationship with fleas?

• Predator

• Host

• Symbiont

• Parasite

Which type of symbiosis is considered the most beneficial for both organisms involved?

• Commensalism

• Mutualism

• Predation

• Parasitism

What is the general definition of symbiosis?

• A relationship where organisms compete for resources

• A relationship where one organism is harmed

• A relationship where one organism eats another

• A relationship where two organisms live together