P1~Levels of Organization

What is the relationship between populations and ecosystems?

• Populations are the only component of ecosystems.

• Populations make up communities, which are part of ecosystems.

• Ecosystems are made up of individual organisms only.

• Populations and ecosystems are unrelated.

What is a group of different populations living together called?

• Ecosystem

• Community

• Habitat

• Biosphere

What level of organization includes both biotic and abiotic factors?

• Population

• Community

• Ecosystem

• Biome

What is the term for a single living thing?

• Cell

• Organism

• Molecule

• Species

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

• Biotic factors

• Abiotic factors

• Population density

• Species diversity

What is the definition of a community?

• A group of individuals of the same species

• Multiple organisms of different species.

• A single organism in an environment

• A collection of non-living things

What is the most complex level of organization?

• Population

• Community

• Ecosystem

• Organism

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?

• Ecosystem

• Population

• Community

• Biome

What is the simplest level of organization?

• Cell

• Tissue

• Organism

• Organ System