1. BIOLOGY Unit 7 Notes: Living Organization

2. (1) Living Organization
All living things are made of cells and atoms/molecules.
Levels of Organization:
Atoms and Molecules
Organelles and Cells
Tissues
Organs
Organ Systems
Organism

4. (2) Homeostasis
Involuntary processes and reactions are in place to maintain Homeostasis within cells.
Homeostasis = Internal stability / balance.

5. (3) Nervous System Function: Made Up Of:
Controls all other organ systems + homeostasis.
Allows you to respond to changes/stimuli.
Made Up Of:
Brain
Spinal Cord
Nerves

7. (4) Lymphatic System (A.K.A. The Immune System) Function: Made Up Of:
Protect body against harmful infectious agents + compounds.
Made Up Of:
White Blood Cells
Lymph Vessels, Nodes, and Fluid

9. (5) Cardiovascular System
Function:
Work with the respiratory system to circulate gases.
Pump nutrients throughout the body to working tissues.
Made Up Of:
Heart
Blood Vessels
Blood + Blood Cells

11. (6) Respiratory System Function: Made Up Of:
Work with the cardiovascular system to circulate gases.
Bring oxygen into body + expel carbon dioxide.
Made Up Of:
Nasal Cavity
Lungs
Diaphragm

13. (7) Skeletal System Function: Made Up Of:
Provide body support and mobility.
Protect organs.
Made Up Of:
Bones
Joints
Cartilage

14. (8) Muscular System Function: Made Up Of: Body + Organ mobility.
Produce body heat.
Made Up Of:
Muscle
Ligaments + Tendons

16. (9) Digestive System Function: Made Up Of:
Break food into smaller pieces.
Metabolize biomolecules within food.
Absorb useful nutrients + expel waste.
Made Up Of:
Oral Cavity + Esophagus
Stomach
Small + Large Intestine
Rectum + Anus

17. (10) Excretory System (A.K.A. The Urinary System) Function:
Filter Blood.
Made Up Of:
Kidneys
Ureters
Bladder
Urethra

19. (11) Reproductive System
Function:
Pass genes on to produced offspring.
Made Up Of:
Male  Sperm, Testes, Penis
Female  Eggs, Ovaries + Uterus, Vagina