Biology 101


	There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved. Charles Darwin On the Origin of Species 1859 Lecture Downloads

	Lecture 1: The Nature of Life Exploring the natural world and evolution as a process.		Lecture 6: Jellies & Sea Anemones Radial symmetry and tentacles with stinging cells.
	Lecture 2: Darwin's Ideas Today (Part I) Systematic biology and constructing evolutionary trees.		Lecture 7: Flatworms Bilateral symmetry, cephalization, and three tissue layers.
	Lecture 3: Darwin's Ideas Today (Part II) Darwinain evolution as seen through the program Evolution.		Lecture 8: Mollusca Clams, snails, and squids are part of an extremely successful radiation of animals with shells.
	Lecture 4: The Trunk of the Tree Classification of the early radiations and the origins of eukaryotic cells.		Lecture 9: Segmented Worms Annelid worms have segmented bodies giving them more control.
	Lecture 5: Sponges The first animals were not motile and used a water vascular system to filter feed.		Lecture 10: Video on Evolution Great transformations of the animal world are attributed to genetic variation and change.

Outline Downloads

September 1 Lecture 1
September 3 Lecture 2
September 8 Lecture 3
September 10 Lecture 4
September 15 Lecture 5
September 17 Lecture 6
September 22 Lecture 7
September 24 Lecture 8
September 29 Lecture 9
October 1 Lecture 10
October 6 Midterm Exam 1

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Email Dr. Hollingsworth
hollings@sciences.sdsu.edu