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Inheritance & EvolutionStudy Notes

Binomial Naming System

Part of Classification — GCSE Biology

This study notes covers Binomial Naming System within Classification for GCSE Biology. Classification systems, taxonomy, and evolutionary relationships It is section 3 of 11 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 3 of 11

Practice

25 questions

Recall

20 flashcards

Binomial Naming System

  • Two-part Latin name: Genus + species
  • Written in italics or underlined
  • Genus has capital letter; species is lowercase
  • Example: Homo sapiens (humans)

Visual: Classification of Living Organisms

Classification diagram showing the taxonomic hierarchy (Kingdom, Phylum, Class, Order, Family, Genus, Species), human classification example, the five kingdoms, and binomial naming system

Remember: King Philip Came Over For Good Spaghetti | Binomial name = Genus species (italicised)

Visual: Evidence for Evolution

Evidence for evolution diagram showing 5 types of evidence: fossils, comparative anatomy (homologous structures), DNA/molecular evidence, embryology, and observed evolution (antibiotic resistance)

Remember: 5 types of evidence: Fossils | Comparative anatomy | DNA similarity | Embryology | Observed resistance

Visual: Speciation

Speciation diagram showing how one species becomes two through geographic isolation, different selection pressures, accumulation of genetic differences, and eventual reproductive isolation

Remember: Isolation → Different mutations + Different selection → Genetic changes → Can't interbreed = NEW SPECIES

Keep building this topic

Read this section alongside the surrounding pages in Classification. That gives you the full topic sequence instead of a single isolated revision point.

The Three Domain SystemHow It Works: Classification and Why It ChangesThe Linnaean Classification SystemKey Definitions

Practice Questions for Classification

What is the highest level in the Linnaean classification system?

  • A. Species
  • B. Kingdom
  • C. Phylum
  • D. Class
1 markfoundation

What is the purpose of classifying living things based on their DNA and genome characteristics?

2 marksstandard

Quick Recall Flashcards

What is the highest level of classification?
Kingdom
What is the correct way to write a genus name in Latin?
With capital letter, e.g. Homo

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The Three Domain System

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How It Works: Classification and Why It Changes