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As level OCR Biology Module 4.2 £2.99   Add to cart

Lecture notes

As level OCR Biology Module 4.2

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This includes the entire chapter of 4.2 Biology (OCR, A level from 2015 onwards) that I personally use for revision. Best coupled with past paper questions (you can find online for free). The information has been taken from lectures and has been rewritten in certain areas by my professors. Incredib...

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  • May 15, 2018
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  • 2017/2018
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4.2 Biodiversity

4.2.1 biodiversity

Define biodiversity

● A measure of variation found in the living world


Define habitat

● Where an organism lives


Define species

● A group of organisms that can breed together to produce viable offspring
● These organisms share similar physical characteristics, anatomy,
biochemistry and genetics


Define species diversity

● The number of species and abundance of each species that live in a particular
location


Define species richness

● The number of different species found in a habitat


Define species evenness

● The degree to which each species is represented
● If each species is found in similar numbers biodiversity is even
● If each species is found in differing numbers it is uneven


Define abundance

● The number of individuals of a species
Define genetic biodiversity

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