Binomial Nomenclature
Binomial nomenclature is the scientific naming system in which each organism is given a two-part name: genus name followed by species name.
Concept Practice Coming SoonMain explanation
Teacher explanation
This system was popularised by Linnaeus and helps avoid confusion caused by different local names. The genus name begins with a capital letter, while the species name begins with a small letter. The name is printed in italics or underlined separately when handwritten. The words are usually Latin or Latinised.
Example
The scientific name of humans is Homo sapiens, where Homo is the genus and sapiens is the species.
Simple analogy
Two-name rule: Genus Capital, species small.
Common confusion
Students often capitalise both words or forget to underline the two words separately in handwritten answers.
Exam tip
Write genus first, species second, capitalise only the genus, and underline both words separately if writing by hand.
Answer writing and exam use
1-mark use
Write the exact meaning of binomial nomenclature in one clean line.
2-mark use
Define binomial nomenclature and add one example or condition.
3-mark use
Explain binomial nomenclature, show the method or example, and mention the common mistake.
Concept practice is coming soon
Join the waitlist for concept-level MCQs and weak-concept practice.
Help improve this page
Found something confusing, incorrect, or missing?