Ecosystem Dynamics: Competition Predation and Symbiotic Relationships

The video explores three types of relationships in ecosystems: competition, predator-prey, and symbiosis. It explains intraspecific and interspecific competition, where organisms compete for limited resources. Predator-prey dynamics are illustrated with examples like bears and salmon. Symbiosis is discussed with mutualism, commensalism, and parasitism, providing examples such as bacteria in humans and lampreys on fish.

What is the term for the maximum population size that an environment can support?

• Carrying capacity

• Ecological footprint

• Population density

• Biotic potential

Which type of competition occurs between organisms of the same species?

• Interspecific competition

• Intraspecific competition

• Resource partitioning

• Mutualism

Which of the following is an example of interspecific competition?

• Zebras competing for mates

• Owls competing for the same prey

• Pine trees competing for sunlight

• Bears and wolves competing for food

In a predator-prey relationship, what role does the salmon play when hunted by bears?

• Symbiont

• Competitor

• Prey

• Predator

What is the relationship called where both organisms benefit?

• Parasitism

• Commensalism

• Mutualism

• Predation

Which type of symbiosis involves one organism benefiting while the other is neither helped nor harmed?

• Parasitism

• Competition

• Commensalism

• Mutualism

What is an example of mutualism involving termites?

• Termites and protozoa

• Termites and wood

• Termites and bacteria

• Termites and fungi

Which of the following is an example of commensalism?

• Lampreys feeding on fish

• Hermit crabs using snail shells

• Cuckoos laying eggs in other birds' nests

• Lynx hunting snowshoe hares

What is the relationship where one organism benefits at the expense of another?

• Predation

• Parasitism

• Commensalism

• Mutualism

Which bird is known for laying its eggs in the nests of other birds, leading to parasitism?

• Sparrow

• Cuckoo

• Robin

• Eagle