Binomial nomenclature — KCSE Biology

KCSE Biology · 99 practice questions · 3 syllabus objectives

40 easy37 medium22 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

State the rules of binomial nomenclature

Write scientific names correctly using binomial nomenclature

Binomial nomenclature

Sample Questions

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1
easySHORT ANSWER4 marks

In the study of biological classification, understanding the systematic naming of organisms is crucial. This framework not only aids in identifying species but also highlights the contributions of key figures in the field of taxonomy. (a) Define the term taxonomy. (1 mark) (b) Name the scientist who developed the binomial system of naming organisms. (1 mark) (c) State two contributions of this scientist to the study of taxonomy. (2 marks)

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Part (a) — 4 marks
Taxonomy is the science of classifying and naming organisms into groups based on their similarities and differences (1 mk)
2
easySHORT ANSWER3 marks

In the study of biological classification, understanding the concept of species is fundamental. This knowledge aids in distinguishing and categorizing organisms based on shared characteristics and reproductive capabilities. (a) Define the term species. (2 marks) (b) State one criterion used to determine whether two organisms belong to the same species. (1 mark)

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Part (a) — 3 marks
A species is a group of organisms that can naturally interbreed to produce fertile (viable) offspring (2 mks)
3
easySHORT ANSWER3 marks

In the study of biological classification, the systematic naming of organisms is crucial for effective communication and understanding. This process involves specific rules that govern how species are identified and categorized. (a) Define the term binomial nomenclature. (2 marks) (b) State the application of binomial nomenclature in the naming of organisms. (1 mark)

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Part (a) — 3 marks
Binomial nomenclature is the international system of naming organisms using two Latin names: the first name is the genus (generic name) and the second is the species (specific name) (2 mks)
4

The classification of living organisms is a fundamental aspect of biological sciences, enabling scientists to communicate effectively about various species. This process involves understanding the principles of naming and categorizing organisms, as well as recognizing the historical contributions that have shaped this field. (a) What is meant by the term taxonomy? (1 mark) (b) State two contributions of Carolus Linnaeus to taxonomy. (two marks) (c) Give two reason(s) why scientific names are preferred over common / local names. (two marks)

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