Ecosystem Dynamics and Interdependence

The video tutorial explores the concept of interdependence in ecosystems, focusing on abiotic and biotic factors. It explains how non-living (abiotic) elements like light and water, and living (biotic) components such as food sources, interact. The lesson delves into competition among organisms for limited resources, highlighting the role of limiting factors and carrying capacity in maintaining ecosystem balance. The tutorial concludes with a brief overview of food webs and their significance in understanding ecosystem dynamics.

What term describes the way different members of an ecosystem work together?

• Interdependence

• Isolation

• Independence

• Competition

Which of the following is NOT an abiotic factor?

• Soil

• Plants

• Light

• Water

Abiotic factors are characterized by which of the following?

• They are food sources

• They are non-living

• They contain cells

• They are living

What are biotic factors in an ecosystem?

• Living parts

• Soil composition

• Non-living components

• Temperature

Which of the following is an example of a biotic factor?

• Temperature

• Food sources

• Water

• Sunlight

What limits the number of organisms that can live in an area?

• Competition

• Abiotic factors

• Isolation

• Biotic factors

What is a limiting factor in an ecosystem?

• A factor that decreases competition

• A factor that increases resources

• A factor that supports unlimited growth

• A factor that limits population growth

What happens when an ecosystem reaches its carrying capacity?

• Population growth is limited

• Competition decreases

• Resources become unlimited

• Population growth continues

What is the significance of food webs in an ecosystem?

• They represent the isolation of species

• They show the independence of organisms

• They depict the interdependence of organisms

• They illustrate abiotic factors

How can one change in a food web affect an ecosystem?

• It only affects the top predators

• It affects only abiotic factors

• It has no effect

• It can impact other organisms