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Topic 5.5 Classification is a section of the course with TOK links – why does every organism on the planet have the same scientific name in every country, and how do scientists decide upon that name? How did Linnaeus`system of classification change over time, and what features are used for classification? All of these things will be covered in this topic.

We will use this excellent resource from the Wellcome foundation to show how all organisms are linked together, together with where we will get examples of one plant and one animal showing complete naming.

There is a nice Classification learning resource that we will use parts of to learn key features of certain phyla of plants and animals produced by the nice people at

To help you

Populations and Evolution

So now we have pretty much finished Topic 5.3 on Populations, there is only your design lab left to write. If you have lost the front sheet it can be found by following this link – Design lab growth rate of yeast.

If you require a Little more Information on the Population Topic then you may wish to look here.

We are also going to have a look at Topic 5.4 Evolution. This is a very contentious Topic for many People in many countries. Richard Dawkins is a well respected evolutionary biologist – watch the following TED talk and see if you can see why.

Finally, there is a nice presentation introducing Evolution

So what can I do?

I have had several conversations with students recently about anthropogenic climate change. The DIS1 and 2 students are introduced to the concept when they study the Carbon cycle, the DIS4 students study it as part of the Ecology topic when we looked to answer the question “how do you form an opinion” and it was also covered in DIS4 in World studies. The one question that students always ask is the one in the title of this post.


If you are genuinely interested in investing some of your time to raise awareness of this issue and to effect positive change (remember the precautionary principle means we don’t need to have unequivocal proof before we act) there are many non-governmental organisations which are looking to raise awareness amongst the general public, and are looking to put pressure onto governments. Examples are Greenpeace, WWF, 360.ORG and AVAAZ. AVAAZ are running at the moment a campaign,The Global People`s Climate March, on 21st September details of which can be found here.



Anthropogenic climate change, that`s just a theory right?

There are many examples in Scientific history where there has been scientific debate upon important points. One such area is with the theory of anthropogenic climate change. This beggars the question what is a theory, what is an argument, and how much evidence do we need to move from theory to accepted fact. The precautionary principle becomes important here and we will introduce this idea with a discussion of a rather strange art piece from the 1970`s!

Check out the video below for an introduction

A nice learning resource is given here which covers the main areas of this topic.