Section 3.1-3.2 Biology 1 Notes
SECTION 3.1
WHERE LIFE HAPPENS
1. Living things can be either uni-cellular (one cell) or multi cellular. A bacteria is one type of unicellular.
2. About 8000 of the smallest bacteria could fit inside one of your red blood cells.
3. The longest cells are the thin nerve cells found in large animals and they can be more than a meter long.
4. The cell with the greatest volume is an unfertilized ostrich egg
5. A cell's shape is related to its function. For example, a long nerve cell is long and it carries messages from your spine to your toes.
The contraction and relaxation of muscle tissue is responsible for the movement in animals.
A SMALL NEW WORLD
1. In the 1600's people only knew about organisms they could see with the unaided eye.
2. A trio of Dutch eyeglass makers invented the microscope in the late 1500's. It consisted of a tube with lenses ground from rock crystal, and it magnified objects up to 9 times their actual size.
3. In 1665 the British scientist......
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Section 3.1-3.2 Biology 1 Notes
Section 3.1-3.2 Biology 1 Notes. SECTION 3.1 WHERE LIFE HAPPENS 1. Living things
can be either uni-cellular (one cell) or multi cellular. ...
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