Edexcel IGCSE Biology 4.3B biodiversity
Practise biodiversity questions that use species richness, abundance, evenness, field data and real contexts such as rivers, farms and Arctic species.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- explain biodiversity using number of species, abundance and variation within a habitat
- use field data to justify which area has greater biodiversity, including evenness of numbers
- evaluate incomplete measures when counts omit plants, fungi, bacteria or population sizes
4.3B Biodiversity question 1
[Maximum number: 2]
A group of students investigate the biodiversity in two fields, A and B.
Field A is grazed by cattle and field B has no cattle.
Explain what is meant by the term biodiversity.
An explanation that makes reference to two of the following
- (number / amount / how many/ range) the different species / eq
- number / abundance / how many of each species / eq
- variation / variety (of organisms) (in an ecosystem) / eq
species richness
species evenness
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