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 391: Seed plants are divided into Options:
  A) monocoty ledons and dicotyledons
  B) tracheophytes and ferns
  C) angiosperms and gymnosperms
  D) thallophytes and bryophytes
  Show Answer
  The correct answer is C .
• Question 392:

  

  The part labelled 3 is the

  Options:
  A) leaf scar
  B) lenticle
  C) auxillary bud
  D) girdle scar
  Show Answer
  The correct answer is C .
• Question 393: Which of the following theories was NOT considered by Darwin in his evolutionary theory? Options:
  A) variation
  B) survival of the fitest
  C) use and disuse
  D) competition
  Show Answer
  The correct answer is C .
• Question 394: An onion bulb stores its food in the Options:
  A) Stem
  B) Leaves
  C) Roots
  D) Cotyledon
  E) Branches
  Show Answer
  The correct answer is B .
• Question 395: The specific number of chromosomes in each somatic cell is represented by Options:
  A) 2^N
  B) 23
  C) 2N
  D) N
  Show Answer
  The correct answer is C .
• Question 396:

  

  The function of the part labelled V is for the passage of

  Options:
  A) pollen tube and pollen nucleus
  B) air, water and pollen nucleus
  C) air, antipodal cells and ovum
  D) synergids and egg cell
  Show Answer
  The correct answer is A .
• Question 397:

  The function of pith in plant is

  Options:
  A) absorb mineral salt and nutrient from the soil
  B) store and transport nutrients throughout the plant
  C) trap chlorophyll from the sunlight
  D) Removal of waste product from the plant
  Show Answer
  The correct answer is B .
• Question 398: Sclerenchyma cells are lignified to Options:
  A) strengthen and support the plant
  B) transport synthesized food
  C) conduct water and salt
  D) protect the plant from injury
  Show Answer
  The correct answer is A .
• Question 399: If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal? Options:
  A) Three
  B) Two
  C) One
  D) None
  Show Answer
  The correct answer is D .
• Question 400:

  Which of the following will have the least effect on the rate of change of the numbers in a population

  Options:
  A) Mutation
  B) Food Supply
  C) Disease
  D) Predation
  Show Answer
  The correct answer is A .