Y11 IGCSE Section 4 summary Ecology and environment

Hi Y11,

 Here is a summary of what you need to know and need to be able to do for Section 4, along with links to useful resources.

 I hope this is useful. I realise it doesn't look very user friendly on the blog but you should be able to download the document.

 As always, if you have any questions or problems please let me know.

 Miss Maddy

Y11, ecology

Hi Y11,

You have been looking at human influences on the environment. I now want you to start looking at the way we can study the environment and the organisms within it.

Here are the objectives I want you to look at. Please find definitions of the key words.


4.1 understand the terms population, community, habitat and ecosystem
4.2 explain how quadrats can be used to estimate the population size of an
organism in two different areas
4.3 explain how quadrats can be used to sample the distribution of organisms in
their habitats.

Some useful definitions

s-cool notes

On sampling, quadrats etc

Miss Maddy