SULIMO JOINT EXAMKenya Certificate of Secondary Education
231/1
BIOLOGY PAPER 1
(THEORY)
JULY 2025
TIME : 2 HOURS
Name…………………………………………………..…… Class….………….……………….Candidate`s Signature.…………………………………… Date…….…….……………………Name…………………………………………………..…… Class….………….……………….Candidate`s Signature.…………………………………… Date…….…….……………………Name…………………………………………………..…… Class….………….……………….Candidate`s Signature.…………………………………… Date…….…….……………………Name…………………………………………………..…… Class….………….……………….Candidate`s Signature.…………………………………… Date…….…….……………………
Name…………………………………………………..…… Class….………….……………….
Candidate`s Signature.…………………………………… Date…….…….……………………
Name…………………………………………………..…… Class….………….……………….
Candidate`s Signature.…………………………………… Date…….…….……………………
Instructions to candidates
Write your name and index number in the spaces provided above.
Sign and write the date of the examination in the spaces provided above.
All questions are compulsory
Candidates should answer the questions in English.
This paper consists of 11 printed pages. Candidates should check the question paper to ascertain that all the pages are printed as indicated and that no questions are missing
FOR EXAMINER’S USE ONLY.
Question
Maximum Score
Candidate’s score
1 - 27
80
Name the taxonomic unit grouping that contains individuals with most similarities
(1 mark)
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Give two rules of binomial nomenclature (2 marks)
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A marine amoeba does not burst when transferred into fresh water. Explain. (2 marks)
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