Here is the class presentation:
And this task:
And Crash Course (some of) it here:
Work through this Essential Biology 5.5 Classification as you go through the presentation.
There are some activities you can download here:
And here are the Click4Biology notes
There is also a great Environmental Science course online here: The Habitable Planet
How many species are there on Earth?
A good question, and the subject of much research. This recent paper on PLOS Biology estimates 8.7 million. For a good write-up of the story, including an explanation of the diagram below, head over to Carl Zimmers’ The Loom blog:
Here is a terrible pun, which you’ll only get if you understand the plant phyla:
A skeptical anthropologist was cataloging South American folk remedies with the assistance of a tribal Brujo who indicated that the leaves of a particular fern were a sure cure for any case of constipation. When the anthropologist expressed his doubts, the Brujo looked him in the eye and said, “Let me tell you, with fronds like these, you don’t need enemas.”
And if you didn’t get that, you might have a smile at Debra the Zonkey (or Zedonk):
Classify this monster jellyfish: