Characteristics of Life

All Organisms All organisms must be able to: Reproduce Obtain resources and use energy Grow and Develop Exchange gases Contain cells Respond Maintain Homeostasis

Exchange of Gases Organisms must undergo a process, which exchanges oxygen, carbon dioxide, and any other gases.

Response Must be able to respond to a stimulus. Organisms must be able to adapt to its’ surroundings. An organism’s environment is always changing. Must be able to respond to a stimulus. Ex:

Homeostasis Organisms must maintain their internal conditions Responds to its internal and external environment. Ex: Weather change, Temp. change If your body gets too cool or cold, what response does your body initiate?

Reproduction Having the ability to make organisms similar to themselves. Two types of Reproduction: Asexual- One parent creates an offpsring Sexual- Two parents create an offspring

Growth and Development All organisms must be able to grow larger Development All organisms must grow through a process of change. Makes them a more complex organism.

Organisms Any Living Thing.

Energy Use All organisms must use energy to undergo all life processes. Ex: Eating, growing, thinking, etc….

Cellular Organization All organisms/ living things must contain 1 or more cells. Unicellular- contains 1 cell Multicellular- contains more than 1 cell.