Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 1: When sickle cell carrier marries a normal woman, the probability of them having a normal offspring is Options:
  A) 0.75
  B) 0.25
  C) 0.5
  D) .1
  Show Answer
  The correct answer is C .
• Question 2: Which of the following requires the use of carbon dating to prove that evolution has occurred? Options:
  A) Comparative anatomy
  B) Biochemical similarities
  C) molecular records
  D) Fossil records
  Show Answer
  The correct answer is D .
• Question 3: Water retention is highest in soils which are rich in Options:
  A) sand, poor in humus and devoid of clay
  B) clay and sand, but poor in humus
  C) clay and humus, but poor in sand
  D) clay, poor in humus and devoid of sand
  E) sand and humus, but poor in clay
  Show Answer
  The correct answer is D .
• Question 4:

  Which of the following is the most inclusive level of classification in the Linnaean system?

  Options:
  A) Kingdom
  B) Domain
  C) Class
  D) Phylum
  Show Answer
  The correct answer is A .
• Question 5:

  

  Use the diagram above to answer this question.Arrows represent directional movement materials.

  Transportation in the xylem is represented by

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is D .
• Question 6:

  Which of the following is a difference between plant and animal cells?

  Options:
  A) Plant cells have a nucleus, while animal cells do not
  B) Plant cells have a cell membrane, while animal cells have a cell wall
  C) Plant cells contain chloroplasts for photosynthesis, while animal cells do not
  D) Plant cells have a central vacuole, while animal cells have multiple small vacuoles
  Show Answer
  The correct answer is C .
• Question 7:

  Which of the following is a male reproductive organ in humans?

  Options:
  A) Uterus
  B) Ovary
  C) Testis
  D) Fallopian tube
  Show Answer
  The correct answer is C .
• Question 8: Millet , sorghum, maize and onions are common crops growth in Nigeria in the Options:
  A) tropical rainforests
  B) sudan savanna
  C) montane forests
  D) sahel savanna
  Show Answer
  The correct answer is B .
• Question 9: Which of the following vertebrates does the skin function as a respiratory surface? Options:
  A) Rat
  B) Lizard
  C) Fish
  D) Frog
  Show Answer
  The correct answer is D .
• Question 10:

  What is the primary source of variation in a population?

  Options:
  A) Gene flow
  B) Mutation
  C) Natural selection
  D) Genetic drift
  Show Answer
  The correct answer is B .