Chapter 1 - The study of Life
Biology is
the study of living and once living things
Section 1:1 Biology in Use
Who uses Biology
Beekeeper
Living, non-living, and dead
[once living]
Examples
Living - Plants and animals
Doctor
Non-living – soil, rocks,
Optometrist
You
water
Dead – wood, paper
Differences?
Tools of Biology
Magnifying glass - hand lens
2. Microscope
1.
Micro = small
Scope = to look
Types of microscopes
A. Light microscope [compound]
Has two or more lenses and passes light through the
object being viewed
Power of lenses –
multiply the objective lens by the eyepiece lens
Ex. 10X times 43X = 430X
B. Stereomicroscope
Used to view larger objects and things that light will not
pass through
Has two eyepiece lenses but the magnifying power is less
C. Electron Microscopes
Very high powered [500,000 x};
shoots beams of electrons at an object
Most require the objects to be dead
3. Computers
Used to store, organize, and analyze data
4. Lab tools
Slides, probes, rulers, calculators, beakers, test tubes, etc.