Levels of Organization

Front

What is an organism?

Back

An organism is any single living individual, which can refer to a single human, animal, plant, protista, bacteria, or fungi.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life is found on Earth.

Front

What are the levels of organization in biology?

Back

The levels of organization are: Atom → Molecule → Organelle → Cell → Tissue → Organ → System → Organism → Population → Community → Ecosystem → Biosphere.

Front

What is a molecule?

Back

A molecule is the smallest unit of a compound consisting of two or more atoms bonded together.

Front

What is xylem?

Back

Xylem is a type of tissue found in plants that transports water and nutrients from the roots to the rest of the plant.

Front

What is a cell?

Back

A cell is the basic structural, functional, and biological unit of all living organisms.

Front

What is a tissue?

Back

A tissue is a group of cells that work together to perform a specific function.

Front

What is an organ?

Back

An organ is a collection of tissues that work together to perform a specific function in an organism.

Front

What is a population?

Back

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

Front

What is a community?

Back

A community is a group of different populations that live together in a defined area.