Ecosystem Interactions and Relationships

The video explores various relationships among organisms, including producer-consumer, predator-prey, and parasite-host dynamics. It discusses how these relationships can be beneficial or harmful, and how they affect energy flow in ecosystems. The video also covers mutualism, competition, and symbiosis, highlighting the importance of these interactions in maintaining ecological balance. Additionally, it examines the role of scavengers and decomposers in nutrient cycling and the impact of population changes on food webs.

What is an organism?

• A type of animal

• A type of plant

• Any independent living thing

• A non-living thing

Which of the following is a producer?

• Lion

• Rabbit

• Elephant

• Tree

What do primary consumers eat?

• Producers

• Decomposers

• Other consumers

• Scavengers

Which adaptation might a prey develop to avoid predators?

• Slow movement

• Bright colors

• Camouflage

• Loud noises

What is a characteristic of a parasitic relationship?

• One organism is harmed

• Both organisms benefit

• Both organisms are harmed

• Neither organism is affected

What role do scavengers play in an ecosystem?

• They produce energy

• They eat living plants

• They compete for resources

• They consume dead animals

In a competitive relationship, what do species compete for?

• Mutual benefits

• Food and resources

• Parasitic hosts

• Symbiotic partners

What is mutualism?

• Neither species is affected

• Both species benefit

• One species benefits, the other is harmed

• One species benefits, the other is unaffected

Which of the following is an example of commensalism?

• Fleas on a dog

• Barnacles on a whale

• Lions hunting zebras

• Bees pollinating flowers

How do population changes affect the food chain?

• They can alter the number of consumers

• They only affect decomposers

• They only affect producers

• They have no effect