Biotic and Abiotic Factors in Ecosystems

The video tutorial for grade five covers the interaction of living things, focusing on ecosystems, habitats, and niches. It explains biotic and abiotic factors, the concept of invasive species, and their impact on the environment, human health, and economy. The lesson concludes with a discussion on predator and prey relationships.

What is an ecosystem composed of?

• Only living things

• Only non-living things

• Both living and non-living things

• Only plants and animals

Which of the following is a biotic factor?

• Temperature

• Air

• Bacteria

• Light

What term is used to describe non-living components in an environment?

• Biotic factors

• Abiotic factors

• Environmental factors

• Living factors

Where does an organism live within an ecosystem?

• Population

• Community

• Habitat

• Niche

What is the role or job of an organism in its ecosystem called?

• Community

• Niche

• Habitat

• Ecosystem

What are invasive species known to do in a new environment?

• Increase biodiversity

• Create new habitats

• Harm the environment

• Help native species

How do invasive species typically spread to new areas?

• By changing climates

• By human activities

• Through animal carriers

• Through natural migration

What is a predator in a predator-prey relationship?

• An organism that lives in water

• An organism that only eats plants

• An organism that hunts and kills for food

• An organism that is hunted

Which of the following is an example of a predator-prey relationship?

• Bird and nest

• Fish and water

• Tree and soil

• Cat and mouse

What happens to the prey in a predator-prey relationship?

• It becomes a predator

• It changes its habitat

• It is killed for food

• It hunts the predator