Ecosystem Dynamics Biotic And Abiotic Interactions

The video explores the components of ecosystems, focusing on abiotic and biotic factors. Biotic factors include living organisms and their interactions, while abiotic factors encompass physical and chemical elements like sunlight and water. The video explains how these factors interact to define ecosystems, using examples like algae blooms and oak trees to illustrate these concepts.

What are the two main components that make up an ecosystem?

• Plants and animals

• Biotic and abiotic factors

• Water and sunlight

• Rocks and soil

Which of the following is considered a biotic factor?

• A rabbit

• Sunlight

• Temperature

• pH of soil

What is an example of a product of a biotic factor?

• Rain

• Honey

• Sunlight

• Wind

How do biotic factors interact with each other?

• Through chemical reactions

• By competing for sunlight

• By forming relationships like predation and pollination

• By changing the seasons

Which of the following is an abiotic factor?

• Temperature

• A fungus

• A tree

• A fish

What role do abiotic factors play in an ecosystem?

• They provide food for animals

• They determine the chemical makeup of organisms

• They define the physical environment and interact with biotic elements

• They are the main source of energy for plants

What happens when a limiting abiotic factor is removed?

• Biotic growth can increase significantly

• The abiotic factors become biotic

• Biotic growth is restricted

• The ecosystem remains unchanged

What is an example of a limiting factor in water ecosystems?

• Wind

• Temperature

• Phosphates

• Sunlight

How does an oak tree interact with abiotic factors?

• By providing shelter for animals

• By competing for sunlight

• By absorbing carbon dioxide

• By producing oxygen

What happens to the molecules of leaves after they decompose?

• They turn into sunlight

• They remain biotic

• They disappear

• They become abiotic