Topic 1 - Living Things in the Biosphere Vocabulary

Front

A living thing.

Back

Organism

Front

The basic unit of structure and function in living things.

Back

Cell

Front

Made of a single cell.

Back

Unicellular

Front

Consisting of many cells.

Back

Multicellular

Front

Any change or signal in the environment that can make an organism react in some way.

Back

Stimulus

Front

An action or change in behavior that occurs as a result of a stimulus.

Back

Response

Front

The mistaken idea that living things arise from nonliving sources.

Back

Spontaneous generation

Front

The condition in which an organism’s internal environment is kept stable in spite of changes in the external environment.

Back

Homeostasis

Front

A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.

Back

Species

Front

The process of grouping things based on their similarities.

Back

Classification