Life Forms and Their Interactions in Ecosystems

The video tutorial explains the concepts of organisms, populations, communities, and ecosystems. It begins by defining an organism as an individual living thing and a population as a group of organisms from the same species in an area. It then describes a community as different populations interacting in an area. The tutorial further explains ecosystems as comprising both biotic (living) and abiotic (non-living) factors, using examples like a terrarium and animal intestines to illustrate that ecosystems can vary in size.

What term is used to describe a single living entity?

• Community

• Ecosystem

• Organism

• Population

What do you call a group of the same species living in a specific area?

• Organism

• Ecosystem

• Population

• Community

How are different populations interacting in an area defined?

• Organism

• Community

• Population

• Ecosystem

Which of the following is NOT a type of community mentioned?

• Bird community

• Plant community

• Mammal community

• Fish community

What does an ecosystem include?

• Only plants and animals

• Both living and non-living things

• Only non-living things

• Only living things

Which of the following is a component of an ecosystem?

• Rainfall

• Population

• Community

• Organism

Which of the following can be considered an ecosystem?

• A single organism

• A herd of buffalo

• A city population

• A terrarium with plants and sand

Why can the intestines of animals be defined as an ecosystem?

• They contain only living factors

• They are part of a larger organism

• They contain both living and non-living factors

• They contain only non-living factors