Biotic and Abiotic Factors in Ecosystems

Mary Penro, an Adjunct Professor of Biology, introduces ecosystems, highlighting the interaction between living (biotic) and non-living (abiotic) components. Biotic factors include organisms like fungi, animals, plants, and bacteria, while abiotic factors encompass elements like hydrogen, oxygen, carbon, nitrogen, sunlight, water, and soil. The video emphasizes the dependency of biotic factors on abiotic ones, illustrating the fragility of life. Viewers are encouraged to explore more through provided resources.

What is an ecosystem composed of?

• Only living organisms

• Both living organisms and non-living components

• Only plants and animals

• Only non-living components

Which of the following is a biotic factor?

• Soil

• Sunlight

• Water

• Fungi

Biotic factors in an ecosystem include:

• Water and air

• Rocks and minerals

• Plants and animals

• Sunlight and temperature

Which of the following is NOT an abiotic factor?

• Sunlight

• Water

• Oxygen

• Bacteria

Abiotic factors are essential because they:

• Are not necessary for life

• Provide energy and nutrients

• Are living organisms

• Only exist in water

How do biotic factors depend on abiotic factors?

• Biotic factors can survive without abiotic factors

• Abiotic factors rely on biotic factors for survival

• Biotic factors need abiotic factors to exist

• There is no relationship between them

If all biotic factors disappeared, what would happen to abiotic factors?

• Abiotic factors would also disappear

• Abiotic factors would cease to exist

• Abiotic factors would continue unaffected

• Abiotic factors would become biotic

What does the interdependence of biotic and abiotic factors demonstrate?

• The fragility of life

• The strength of ecosystems

• The abundance of resources

• The independence of life

Where can you find more resources on ecosystems?

• In the video description

• By sending an email to [e-mail]

• All of the above

• By subscribing to the channel

What is the main purpose of the video?

• To entertain viewers

• To sell a product

• To promote a brand

• To educate about ecosystems