Species Interactions and Relationships

The video introduces the concept of ecological communities and focuses on interspecific interactions, including competition, predation, and symbiosis. It explains how species interact within a habitat, competing for resources, engaging in predation, and forming symbiotic relationships like parasitism, mutualism, and commensalism. Each interaction type is illustrated with examples, highlighting the effects on the species involved.

What is the term used to describe different populations sharing the same habitat?

• Ecosystem

• Niche

• Community

• Biosphere

Which of the following is an example of competition among species?

• Plants competing for sunlight

• A lion hunting a zebra

• A bee pollinating a flower

• Bacteria living on human skin

What does a negative/negative interaction indicate in interspecific competition?

• One species is harmed, the other benefits

• Both species are harmed

• One species benefits, the other is unaffected

• Both species benefit

Which of the following is a type of predation?

• Parasitism

• Mutualism

• Herbivory

• Commensalism

In the context of predation, what does a plus/minus interaction signify?

• The prey benefits, the predator is unaffected

• The predator benefits, the prey is harmed

• Both species benefit

• Both species are harmed

What is the term for a long-term interaction where one organism benefits and the other is harmed?

• Mutualism

• Commensalism

• Parasitism

• Competition

Which interaction involves both species benefiting from the relationship?

• Parasitism

• Mutualism

• Competition

• Herbivory

What is the term for an interaction where one species benefits and the other is unaffected?

• Competition

• Mutualism

• Parasitism

• Commensalism

Which of the following is an example of commensalism?

• A tick feeding on a dog

• A lion hunting a zebra

• A bird nesting in a tree

• A bee pollinating a flower

What might commensalism sometimes be reclassified as upon further study?

• Mutualism or parasitism

• Competition or predation

• Parasitism or competition

• Herbivory or mutualism