Biology 534 Mr. Taylor. Required materials Pen, Pencil, Ruler, Eraser, Red Pen Binder (or Exercise books) for notes Duotang (or similar folder) to keep assignments in. You will be assigned a textbook (next week) Make a protective cover for it.
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*Except viruses, which are not considered truly alive by some biologists!
* This is a majority opinion. A few biologists do consider viruses to be living.
Anyone who uses the expression “It’s only a theory”
Doesn’t know what a theory really is!
Chemistry and Life
Sodium atomsodium ion
Chlorine atomchlorine ion
Ions that are dissolved in blood and cytoplasm as well as in nerve tissue are important to most organisms.
Click on image for video clip.
Or any diagram
similar to the one
on page 57
Protozoa will be very small. Even on medium power they can still look quite tiny in your microscope field.
Algae will be quite small, but usually larger than protozoa
They will have a greenish or yellowish tint.
Insect Larvae are larger than protozans. Larger ones will fill your microscope field on medium power. Sometimes they have six little legs.
Daphnia are larger than protozoa or algae. They are easily mistaken
For insect larvae (but they don’t have the six little legs)
The flat and round worms are quite a bit bigger.
A planarian may fill your microscope field, even on low power, and nematodes vary in size from microscopic to over a foot long.