Living things Flashcards
Autotroph
An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food.
Heterotroph
An organism that cannot make its own food and gets food by consuming other living things.
Characteristic
A feature that helps to identify something.
Organism
A living thing.
Cell
The basic unit of structure and function in living things.
Unicellular
Made of a single cell.
Multicellular
Consisting of many cells.
Stimulus
Any change or signal in the environment that can make an organism react in some way.
Response
An action or change in behavior that occurs as a result of a stimulus.
Spontaneous generation
The mistaken idea that living things arise from nonliving sources.
Homeostasis
The condition in which an organism’s internal environment is kept stable in spite of changes in the external environment.