Organism Interactions: Predation, Competition, and Symbiosis Explained

The video tutorial covers interactions between organisms, focusing on predation, competition, and symbiosis. Predation involves one organism consuming another, either carnivorously or herbivorously. Competition occurs when organisms vie for the same resources, either between or within species. Symbiosis includes mutualism, where both parties benefit; parasitism, where one benefits at the other's expense; and commensalism, where one benefits without affecting the other. The video concludes with a summary of these interactions.

What are the three main types of interactions between organisms?

• Herbivory, carnivory, and omnivory

• Mutualism, parasitism, and commensalism

• Interspecies, intraspecies, and symbiosis

• Predation, competition, and symbiosis

Which type of predation involves an animal eating plants?

• Carnivorous

• Herbivorous

• Omnivorous

• Parasitic

What is the term for competition between different species?

• Intraspecies competition

• Interspecies competition

• Symbiotic competition

• Predatory competition

Which type of symbiosis benefits both organisms involved?

• Parasitism

• Commensalism

• Mutualism

• Predation

In mutualism, what do both organisms experience?

• Neither benefits nor is harmed

• One benefits, one is harmed

• Both are harmed

• Both benefit

In parasitism, what happens to the host organism?

• It benefits and is harmed

• It is unaffected

• It is harmed

• It benefits

What is unique about commensalism?

• Both organisms are unaffected

• One organism is harmed

• One organism benefits, the other is unaffected

• Both organisms benefit

What is the origin of the word 'commensalism'?

• Greek, meaning 'shared life'

• Latin, meaning 'sharing a table'

• French, meaning 'common meal'

• Spanish, meaning 'shared space'

Which type of symbiosis is described as the 'happiest'?

• Parasitism

• Commensalism

• Predation

• Mutualism

In the example of commensalism, what does the small fish do?

• Benefits the big fish

• Hitches a ride without affecting the big fish

• Competes with the big fish

• Harms the big fish