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Course: Edexcel A Level Biology A (SNAB) 9BI0
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Edexcel A Level Biology A (SNAB) 9BI0

Topic 1 · Lifestyle, Health and Risk

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Topic 2 · Genes and Health

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Topic 3 · Voice of the Genome

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Topic 4 · Biodiversity and Natural Resources

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Topic 5 · On the Wild Side

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Topic 6 · Immunity, Infection and Forensics

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Topic 7 · Run for your Life

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Topic 8 · Grey Matter

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Quiz

4.1 Biodiversity – Check yourself

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Biodiversity Edexcel A Level Biology SNAB check yourself quiz: free practice for Edexcel A Level Biology A (snab) 9BI0. Work through this Biodiversity Edexcel A Level Biology SNAB check yourself quiz and get instant feedback on every answer. If you get stuck, review the 4.1 Biodiversity — 9BI0 Notes lesson. More practice: Edexcel A Level Biology A (snab) 9BI0 — all units. Syllabus: Pearson Edexcel A Levels.

  • Questions count: 10
  • Passing grade: B
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1.

Biodiversity can be measured within a habitat using

the mass of soil
the number of habitats
rainfall
species richness
2.

The heterozygosity index is

the number of species
the number of alleles
the number of heterozygotes ÷ the number of individuals in the population
the number of habitats
3.

The index of diversity is more useful than species richness because it

also takes into account the abundance of each species
counts only plants
ignores rare species
is easier to measure
4.

Endemism means that a species

is found everywhere
is extinct
is found in only one geographical area
is domesticated
5.

A niche is

its habitat only
its species name
the way an organism exploits its environment
its population size
6.

Adaptations may be

only anatomical
behavioural, physiological or anatomical
only behavioural
learned only
7.

The Hardy–Weinberg equation can be used to

see whether allele frequencies in a population are changing over time
count species
measure habitat area
classify organisms
8.

Zoos help conserve endangered species through

trade
hunting
captive breeding, reintroduction and education
habitat removal
9.

Seed banks are useful because

seeds grow in storage
large numbers of seeds can be stored cheaply in little space, conserving genetic diversity
all seeds live for ever
they replace habitats
10.

Classification into three domains was based on

body shape
molecular phylogeny
habitat
colour
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Part of Topic 4 · Biodiversity and Natural Resources — see every lesson and quiz in this unit.
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