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 901: Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of Options:
  A) fats and oil
  B) proteins
  C) amino acids
  D) starch
  Show Answer
  The correct answer is A .
• Question 902: Gaseous exchange in Aves occurs in the Options:
  A) tracheoles
  B) bronchi
  C) air sacs
  D) trachea
  Show Answer
  The correct answer is C .
• Question 903: One of the following exist as colony Options:
  A) euglena
  B) paramecium
  C) spirogyra
  D) volvox
  Show Answer
  The correct answer is D .
• Question 904: A dilute solution of phenylthiocarbamide tastes bitter to some people and is tasteless to others. This is an example of Options:
  A) taste bud variation
  B) discontinuous variation
  C) morphological variation
  D) continuous variation
  Show Answer
  The correct answer is B .
• Question 905: Which of the following is a common characteristic of crustaceans? Options:
  A) Possession of a pair of antennae
  B) Possession of two pairs of antennae
  C) Each segmented has a pair of walking legs
  D) Four pairs walking on the cephalothorax
  Show Answer
  The correct answer is B .
• Question 906: The deficiency of vitamin D leads to Options:
  A) scurvy
  B) pellagra
  C) rickets
  D) beriberi
  E) polio
  Show Answer
  The correct answer is C .
• Question 907:

  

  The structure labelled 4 is for

  Options:
  A) feeding
  B) attachment
  C) excretion
  D) respiration
  Show Answer
  The correct answer is B .
• Question 908:

  Metamorphosis is a biological process that involves

  Options:
  A) The growth and development of an organism from a zygote to an adult
  B) The change in form and structure during the life cycle of certain organisms
  C) The regeneration of lost body parts in an organism
  D) The transformation of an organism from an adult stage to a larval stage
  Show Answer
  The correct answer is B .
• Question 909: The most common means of transmiting the Acquired Immune Deficiency Syndrome (AIDS) is Options:
  A) from mother to child
  B) through blood transfusion
  C) through sexual intercourse
  D) through the sharing of needles
  Show Answer
  The correct answer is C .
• Question 910: insectivorous plants traps and kill their prey to derive Options:
  A) phosphorous
  B) calcium
  C) nitrogen
  D) zinc
  Show Answer
  The correct answer is C .