The study of life, offers an organized and scientific framework for posing and answering such questions about the natural world.
The high degree of order within an organism's internal and external parts and in its interaction with the living world.
The smallest unit that can perform all life's processes.
Organisms are made of one cell such as bacterias.
Organisms are made of multiple cells such as humans.
Structures that carry out specialized jobs within an organ system.
Groups of cells that have similar abilities that allow the organ to function.
Tiny structures that carry out functions necessary for the cell to stay alive.
The chemical compounds that provide physical structure and that bring about movement, energy use, and other cellular functions. Organelles contain those.
The maintenance of a stable level of internal conditions even though environmental conditions are constantly changing.
Sum of all the chemical reactions that take in and transform energy and materials from the environment.
The formation of two new cells from an existing cell. The primary change that occurs following cell division is cell enlargement.
The process by which an organism becomes a mature adult. it includes cell division and cell differentiation, or specialization.
All organisms produce new organisms like themselves in this process. Because no organism lives forever, it is important for the continuation of a species.
A short segment of DNA that contains the instructions for a single trait of an organism.