1. Chapter 1: Biology Introduction to Biology 1.1 ~ 1.2 (Pgs. 2 ~ 3) Objective: I can correctly assign levels in the hierarchy of life’s organization and report emergent properties that arise when switching levels. *Be wise about how you take notes

2. Biology is the study of life What is life? How do we define it? Is it just… Lots of arguments & debates: viruses…? DEAD or ALIVE VERSUS Non-living thing or Organism (living or once-living thing) “Non-living things cannot die” “Death is a part of life”

3. “The Rule of Life” To be considered an organism (have life), must have ALL properties of life If missing even one property of life, will be considered a non-living thing Is fire alive…? WAITAMINUTE!!!Is fire an organism?

4. Properties (Processes) of Life Cellular Organization –All life is made of cells Metabolism: –All life uses energy Homeostasis: –All life maintains a stable internal condition Growth and Reproduction –All life changes & make babies Heredity: –All life passes on traits via DNA In the textbook there are 7 What does it go with? Goes with 2… hmmm…I wonder…

5. Properties of Life CO M H GR H Mnemonic = Trick to memorize Clear Out My Homework: Grades Rise Higher Cussing Only Makes Hearts Get Really Heavy Come Out My Homies! Gangstas Representin’ Here! COMHGRHORGERRE

6. Hierarchy of Life – Pt. 1 Life organized in hierarchy based on complexity –Atom –Molecule –Macromolecule *** –Organelle –Cell The smallest unit considered to have life

7. Hierarchy of Life – Pt. 2 Starting where we left off… –Cell –Tissue –Organ –Organ System –Organism _____ (big) is made of different _____ (small), to serve one function Many kinds of ____ (small) come together to make a ______ (big)

8. Hierarchy of Life – Pt. 3 Starting where we left off… –Organism –Population –Community –Ecosystem –Biosphere

9. Figure 1.2_1 Biosphere Madagascar Ecosystem: Forest in Madagascar Community: All organisms in the forest Population: Group of ring-tailed lemurs Organism: Ring-tailed lemur

10. Figure 1.2_2 Organism: Ring-tailed lemur Organ system: Nervous system Organ: Brain Tissue: Nervous tissue Nerve Spinal cord Brain Organelle: Nucleus Cell: Nerve cell (Neuron) Nucleus Atom MacroMolecule: DNA

11. Mnemonic AMMmOC TOOsO PSCEB or BECSP OOsOT COMmMA You come up with one! Note: Hierarchy of Life vs. Diversity of Life Category within categories Classification (taxonomy) Organized by complexity Organized by similar traits 13 levels just discussed Kingdoms…Domains

12. Brief Preview of Diversity of Life 3 domains: Archaea – ancient bacteria Bacteria – regular prokaryotes Eukarya - eukaryotes –6 Major groups (Kingdoms) Archaea – which domain? Bacteria – which domain? Protista – single-cell Fungi – multi-cellular Plantae – Plants Animalia – Animals unicellular multicellular Eukarya

13. Emergent Properties New properties that appear at a higher level of hierarchy/organization, not present at a simpler level of hierarchy Example: Life –Present in –Not present in Example: Consciousness –Present in –Not present in cells organelles Organism Organ System http://www.youtube.com/watch?v=-yglQWbEuQY&t=0m15s