P1~Levels of Organization

What is the simplest level of organization?

• Cell

• Tissue

• Organism

• Organ System

What is the most complex level of organization?

• Population

• Community

• Ecosystem

• Organism

What is a group of different populations living together called?

• Ecosystem

• Community

• Habitat

• Biome

What do ecosystems have that the other three levels of organization do not?

• Biotic factors

• Abiotic factors

• Population density

• Species diversity

What are the non-living parts of an ecosystem called?

• Biotic factors

• Abiotic factors

• Ecosystem services

• Nutrient cycles

What level of organization includes all organisms in a specific area?

• Population

• Ecosystem

• Community

• Biome

What is another word for an organism?

• Biotic factor

• Abiotic factor

• Ecosystem

• Population

What term describes multiple organisms of the same species?

• Community

• Ecosystem

• Population

• Habitat

What are the living parts of an ecosystem called?

• Abiotic factors

• Biotic factors

• Environmental factors

• Geological factors

What is the definition of a community?

• A group of individuals of the same species.

• A collection of organisms in a single habitat.

• Multiple organisms of different species.

• A network of relationships among organisms.