1. EOC Review
Biological Processes

2. SI Units Length = meter Mass = kilograms Time = seconds
Temperature = C
Area = meters2
Volume=liter
Density=kg/m3

3. SI Prefixes Remember: King Henry Died Upon Drinking Chocolate Milk.
K = kilo (1,000)
H = hecto (100)
D = deka (10)
U = unit (1) = meters, liters, grams
D = deci (0.1)
C = centi (0.01)
M = milli (0.001)

4. Metric Conversions
If you remember the phrase and then list the first letter of each word, then you can quickly convert any number from one unit to the next.
For example, how many mL are in 3.5 kL?
K H D O D C M ?
Move the decimal the number of spaces between the letters and in the direction the arrow points.
Therefore, there are 3,500,000 mL in 3.5 kL.

5. Criteria for Being Considered Alive
Cells: one cell (unicellular) or more than one cell (multicellular)
Need for Energy: for metabolism (build up or break down materials via chemical processes)
Response to the Environment: React to environment in order to survive. Ex. Light: lots of light, your pupils contract, you raise your hand to block the light, or put on sunglasses. Plants grow toward light.
Reproduction and Development: must be able to pass genes on to offspring. Controlled by DNA and RNA.

6. Levels of Organization
Smallest to Largest
Subatomic particles – proton, neutron, electron
Atom
Molecule – Ex. H2O, CO2, C6H12O6
Organelle – ribosome, nucleus, ER, Golgi complex
Cell – prokaryotic (bacteria; no nucleus; no membrane bound organelles) vs. eukaryotic (plant and animal)
Tissue
Organ
Organ System
Organism
Population – organisms of same species in same place at same time
Community – different populations in an area
Ecosystem – living (biotic) and nonliving (abiotic)
Biome – tundra, coniferous forest, temperate deciduous forest
Biosphere – part of Earth that contains life