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 71: Which of the following statements is NOT true of insectivorous plants? Options:
  A) They obtain part of their food by trapping and feeding on insects
  B) They attract insects simply because of pollination
  C) Thay can grow in soils poor in nitrogenous salts
  D) They can supplement their nitrgen supply by feeding on insects
  E) Example include butterworts, sundews and pitcher plants
  Show Answer
  The correct answer is B .
• Question 72: The main function of the caudal fin in Tilapia is to Options:
  A) propel it forward in water
  B) steer it while changing direction
  C) balance it in water
  D) enable it to float in water
  Show Answer
  The correct answer is A .
• Question 73:

  One of the functions of water in seed germination is to?

  Options:
  A) dilute the embryo
  B) make the soil wet and soft
  C) activate the enzymes
  D) promote aerobic respiration
  Show Answer
  The correct answer is C .
• Question 74: A major limitation in the use of the potometer for measuring the rate of transpiration is that Options:
  A) it is made of breakable glass materials
  B) it measures the rate of water intake
  C) it measure the rate of water loss throuh the stern only
  D) the movement of the air buble in the potometer cannot be timed accurately
  Show Answer
  The correct answer is D .
• Question 75: The mammalian stomach can carry out a number of processes except Options:
  A) absorption of glucose
  B) secretion of hydrochloric acid
  C) secretion gastric juice
  D) churning of food
  E) production of trypsin
  Show Answer
  The correct answer is E .
• Question 76: The nephridia in the earthworm form part of the Options:
  A) reproductive system
  B) respiratory system
  C) circulatory system
  D) excretory system
  Show Answer
  The correct answer is D .
• Question 77: During mammalian embryo development, large amounts of oestrogen and progesterone are produced in the Options:
  A) umbilical cord
  B) amnion
  C) placenta
  D) amniotic fluid
  Show Answer
  The correct answer is C .
• Question 78: The crossing of individuals of the same species with different genetic characters is Options:
  A) croos breeding
  B) polygenic inheritance
  C) non-disjunctin
  D) inbreeding
  Show Answer
  The correct answer is A .
• Question 79:

  

  In the figure above the structured labelled X is the

  Options:
  A) cellulose cell wall
  B) plasma membrane
  C) nuclear membrane
  D) mucilage wall
  E) ectoplasm
  Show Answer
  The correct answer is D .
• Question 80: The elephant grass is propagated vegetatively by means of Options:
  A) corms
  B) bubils
  C) suckers
  D) stolons
  Show Answer
  The correct answer is D .