Ecosystem levels of organization

What is an organism?

• An individual living thing, such as a plant, animal, or microbe.

• A non-living entity that interacts with living things.

• A group of similar organisms that can breed together.

• A type of ecosystem that supports life.

What is a population?

• A group of individuals of different species living in a specific area.

• A group of individuals of the same species living in a specific area.

• A collection of organisms that cannot interbreed.

• A random assortment of animals in a zoo.

What is the role of producers in an ecosystem?

• Organisms that produce their own food through photosynthesis, such as plants.

• Organisms that consume other organisms for energy.

• Organisms that decompose dead matter and recycle nutrients.

• Organisms that compete for resources with other species.

Give an example of an abiotic factor in an ecosystem.

• Sunlight

• Trees

• Animals

• Bacteria

What is a food chain?

• A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• A complex network of food webs that includes multiple species.

• A diagram that shows the relationship between different ecosystems.

• A method of food preservation used in ancient cultures.

What is biodiversity?

• The total number of organisms in a given area.

• The variety of life in a particular habitat or ecosystem, including the number of different species.

• The process of evolution in different species over time.

• The study of interactions between living organisms and their environment.

Rank the levels of an ecosystem from largest to smallest.

• Communities > Ecosystems > Organisms > Populations

• Ecosystems > Communities > Organisms > Populations

• Populations > Organisms > Communities > Ecosystems

• Ecosystems > Populations > Communities > Organisms

What is a community in an ecosystem?

• A group of organisms that can interbreed and produce fertile offspring.

• All the different populations of organisms that live together in a specific area.

• A single species living in isolation from others.

• The physical environment where organisms live.

What is the role of consumers in an ecosystem?

• Organisms that produce energy through photosynthesis.

• Organisms that eat other organisms for energy, including herbivores, carnivores, and omnivores.

• Organisms that decompose dead matter and recycle nutrients.

• Organisms that compete for resources with other species.

Give an example of a biotic factor in an ecosystem.

• Rocks

• Water

• Plants, animals, fungi, and bacteria

• Sunlight