1. Living Environment- Unit 1
Characteristics of life
All living things are made of -
The cell is the basic unit of -
All living things use energy to maintain life-
All living things maintain a stable internal environment-
All living things maintain various chemical reactions- -
All living things may pass hereditary information to new organisms- -
All living things are diverse and may be grouped -

2. Chemical Composition All living things are made of 4 main elements:
Organic molecules contain both –
3. Organic molecules include:
4. Inorganic molecules –
Examples: Salts, Minerals, Acids, Bases,

3. Organization of an Organism
Unicellular- one celled organism -
Multicellular- made of -
Tissue- a group of similar cells -
Organ- made of tissue to -
Organ system- a group of organs working together to perform –
Organism- a group of organ systems working -
Life Functions- nutrition, excretion, respiration-