Biological Organization and Processes

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

A collection of tissues that work together to perform a more complex function.

The basic unit of life, capable of carrying out all life processes.

The process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

The theory explaining the relationships between all living things, based on shared ancestry and changes over time.

A system of classification that groups organisms based on shared characteristics, from broad groups to more specific ones.

The sum of all chemical reactions that occur within a living organism.

The ability of an organism to maintain a stable internal environment despite external changes.

The process by which living organisms maintain a stable internal environment despite external changes (like body temperature, pH, blood sugar).

All the chemical reactions that occur within a living organism—from breaking down food to building new cells.

A group of individuals of the same species living in the same geographic area.

All the living organisms within a given area, along with their non-living environment.

The unifying theory in biology, explaining how living things have changed over time due to natural selection and shared ancestry.

A system of classifying organisms into groups based on shared characteristics, from broad categories to more specific ones.

A theory that says all living things can be traced back to a single common ancestor and that they’ve evolved over time through changes in their genes.

The study of how organisms interact with each other and their environment.

A scientific explanation for a set of observations, supported by multiple lines of evidence and able to predict new phenomena.

A testable prediction or statement that can be falsified by experimental results.

A group of organisms of the same species living in the same area.

All the living organisms in a given area, interacting with each other and their environment.

A collection of different populations living in the same area.

The highest level of organization in the classification of living organisms.

The process by which organisms acquire and use energy.

The ability of an organism to respond to changes in its environment.