1. Characteristics of Life
Johnson 2016

2. What is Biology? The study of living things
There are seven characteristics that help classify biotic organisms

3. Taxonomy
Taxonomy
Bacteria
Eubacteria
Archaea
Archaebacteria
Eukarya
Protista
Animalia
Plantae
Fungi
Taxonomy: the classification of living things created by scientists
Domains
Kingdoms

4. CHARGER Made up of 1 or more Cells Unicellular (one cell)
- ex. ALL Bacteria & SOME Fungi and Protista
Multicellular (many cells)
- ex. ALL Animals & Plants & SOME Fungi and Protista

5. Have a universal genetic code (DNA)
CHARGER
Have a universal genetic code (DNA)
All living things have DNA
DNA passes on genetic information from one generation to the next

6. CHARGER Maintain homeostasis
Homeostasis – a relatively stable internal environment (within a certain range)
- (ex. Human body temperature (approximately degrees F))

7. Adapt and evolve over time
CHARGER
Adapt and evolve over time
Evolution - gradual change in a population of organisms over time
Individuals DO NOT evolve

8. Respond to stimuli in their environment
CHARGER
Respond to stimuli in their environment
Stimuli - factors in the environment that living things react to
(ex. Light, temperature, sound, etc.)

9. CHARGER Grow and develop
Each cell divides to make new cells (cell division) – results in growth
Some cells become specialized and perform different jobs than others (differentiation)
Ex. Neurons vs. muscular cells

10. CHARGER Energy to survive Uses materials for metabolism
2 Types of Reactions
1. Anabolism
= building up
Ex: Putting amino acids together to make proteins
2. Catabolism
= breaking down
Ex: Breaking down starch into usable sugars

11. CHARGER Energy to survive Autotrophic - use energy from sun
Heterotrophic – make energy by consuming nutrients from their environment

12. 4. All living things reproduce
CHARGER
4. All living things reproduce
Asexual - only one parent cell is needed
No genetic variability
Sexual - two sex cells required (sperm and egg)
genetic variability; preferred by nature