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The Organism in the Environment



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More Lessons for Biology

Math Worksheets

A collection of videos and experiments that are suitable for Biology.

4.1 Ecosystems
Understand the terms population, community, habitat and ecosystem
4.2 Quadrats
Recall the use of quadrats to estimate the population size of an organism in two different areas



4.3 Quadrats samples
Describe the use of quadrats as a technique for sampling the distribution of organisms in their habitats.


Try out our new and fun Fraction Concoction Game.

Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.

Fraction Concoction Game


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