How much of this behavior is innate and how much is learned?What aspects of this behavior is acted upon by natural selection?
Find out why we use a "Fluid Mosiac model" to describe the cell membrane. How would your world be different if you lived in freshwater vs. What mechansims have evolved to increase the efficiency of enzyme pathways what systems have evolved to regulate enzyme function in living organisms. This is the beginning of our journey through the elegant process of how cells harvest energy stored in organic molecules and use it to regenerate ATP.
Learn about how traffic is controlled into & out of the cell. We also look at why ATP is the energy currency of living organisms.
Protists are the "junk drawer" of the Eukaryotic Kingdoms.
Taxonomists are actively working on sorting this group out to make better evolutionary sense.
Our current technology of DNA sequencing has allowed us to make better sense of our groupings, but this field is very much in flux.
Life began as one-celled organisms without organelles and this group has continued to be very successful through the ages... Actually there are more bacteria in YOUR body right now than all the humans that have ever lived! Here is an overview of our present understanding of the evolutionary relationships aomongst the Prokaryotes.The next step on our journey through the step-wise process of how cells harvest energy stored in organic molecules and use it to regenerate ATP.2 billion years ago a bacteria boldly went where no creature had gone before -- it metabolized oxygen and discovered the energy value of oxidizing sugars!Students: I have linked directly to the Powerpoint files so you can download them and view them at home. By attributing the diversity of life to natural causes rather than to supernatural creation, Darwin gave biology a strong, scientific, testable foundation.Teachers: I have linked directly to the Powerpoint files so you can download them and use them in your classroom. The history and evolution of life can be documented with evidence already discussed in previous chapters. Let's see what we hypothesize and what we have experimental evidence to support.It is given structural support by an internal framework of fibers.So let's wrap up this tour of the cell with the internal structures that tie it all together.Humans have been trying to make sense out of the the diversity of life for a long time.A formal system of classification began wth Carolus Linnaeus and taxonomists have been trying to perfect it ever since.Here is an overview of our present understanding of the evolutionary relationships aomongst the Plants.The Animals have been able to radiate out and evolve to fill niches in every biome on this planet.