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 1651:

  

  In the digestive system, absorption of nutrient into the blood takes place in the part labelled

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is C .
• Question 1652: A limited factor in a plant population near a chemical factory is likely to be Options:
  A) Light
  B) Humidity
  C) wind
  D) pH
  Show Answer
  The correct answer is D .
• Question 1653: The process in which complex substances are broken down into simpler ones is referred to as Options:
  A) anabolism
  B) catabolism
  C) metabolism
  D) tropism
  Show Answer
  The correct answer is B .
• Question 1654: The significance of a very large number of termites involved in nuptial swarming is to Options:
  A) provide birds with plenty of food
  B) ensure their perpetuation despite predatory pressure
  C) search for a favourable place to breed
  D) ensure that every individual gets a mate
  Show Answer
  The correct answer is B .
• Question 1655: The sequence of the one-way gaseous exchange mechanism in a fish is Options:
  A) gills ⇢ operculum ⇢ mouth
  B) mouth ⇢ gills ⇢ operculum
  C) mouth ⇢ operculum ⇢ gills
  D) operculum ⇢ mouth ⇢ gills
  Show Answer
  The correct answer is B .
• Question 1656:

  Which of the following is the effect of using artificial pollination in plant breeding?

  Options:
  A) Production of healthy crops
  B) Lengthening the maturity time of crops
  C) Making crops susceptible to disease
  D) Improvement of the variety of crops
  Show Answer
  The correct answer is D .
• Question 1657:

  

  The organ through which the embryo receives food, water and oxygen is labelled

  Options:
  A) III
  B) IV
  C) II
  D) I
  Show Answer
  The correct answer is C .
• Question 1658: The substance that is responsible for optical dominance in plants is known as Options:
  A) gibberellin
  B) tannin
  C) auxin
  D) kinin
  Show Answer
  The correct answer is C .
• Question 1659:

  

  The part labelled I and II constitute the

  Options:
  A) Crown
  B) neck
  C) root
  D) gum
  Show Answer
  The correct answer is A .
• Question 1660: The best method of propagating sugarcane is by Options:
  A) Seeding sowing
  B) Layering
  C) Grafting
  D) Stem cuttings
  Show Answer
  The correct answer is D .