unit one
Lab Safety
always tell the instructor whenever anything negative happens in the lab
3 lab safety rules
1) never work alone. no student may work in the lab without an instructor present
3) keep aisles clear. Push your chair under the desk when not in use
characteristics of life
metric review
2) Never fool around in the lab. horseplay, practical jokes, and pranks are dangerous and prohibited
Metric units
Origins of life
Classification of Living things
Phylogeny
Example of an idea of how life started - life begun in deep sea vents that spewed hydrogen rich nutrients and the crevices gave space for critical chemical reactions when the molecules concentrate
metric unit of volume - liter
metric unit of mass - grams
metric unit of length - meters
metric unit of temperature - Celsius
measure length - metric ruler (mm) and meter stick (cm)
measure volume - graduated cylinder
measure mass - triple beam balance
measure temperature - thermometer
anything above the characteristic has it
the closest organisms on the diagram are highest up
4) obtaining and using energy
5) group evolve
3) growth and development
6) made of cells
2) reproduction
7) respond to the environment (stimuli)
1) DNA/RNA
8) Homeostasis - maintaining a stable internal environment
a scientific name must refer to only one organism or else we'll get confused
the first part of the name is capitalized and the second part lower case
7 classification levels
common names of organisms can differ from place to place but there is only one Latin name for each organism
new DNA affects it by constantly adding to it
Carolus Linnaeus created our modern classification system with binomial nomenclature (the first word of the scientific name is capitalized and the second word isn't)
Order
Family
Class
Genus
Phylum
Species
Kingdom
Major Kingdoms of Life
Prokaryotic
Archaebacteria
Eubacteria
Eukaryotic
Plantae
Animalia
Fungi
Protista (unicellular/ multicellular)
you should understand how to use a dichotomous key