Archive for September 2010


Principles of Ecology (Powerpoint Slides) – Chapter 2

These slides go into some of the basic principles of ecology and how organisms interact with each other and the environment. I also go into nutrition and energy flow.

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What is Biology (Powerpoint Slides) – Chapter 1

Here are the slides for my presentation on “What is Biology”, where I give a general introduction to biology, the scientific method and the nature of science. This covers chapter 1 of Biology: The Dynamics of Life.

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Video: Nutrition and Energy Flow – Principles of Ecology

All organisms (living things) require energy in order to do ANYTHING. Where does all this energy come from? Well, go ahead and watch those videos and you will find out. In the lecture, I talk about the source of energy, producers vs. consumers, the different types of heterotrophs and a number of other details.

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Video: Organisms of Environment – Principles of Ecology

Organisms do not exist in isolation. In fact, they depend on other organisms AND also nonliving things. These interactions are necessary for life to exist and we notice that, in nature, a change in one population affects other populations in an ecosystem. This is something that can lead to interesting consequences.

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Video: The Nature of Biology

This is section 1.3 in the book Biology: The Dynamics of Life. I talk about quantitative vs. qualitative research, how science is influenced by society, the difference between pure science and applied science and then I finish off with the definition of technology, when it comes to science.

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