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 61: During thunderstorms the energy of lightning discharge causes Options:
  A) oxygen and nitrogen to combine
  B) more carbon dioxide to be formed
  C) nitrites to be converted to nitrates
  D) nitrates to be converted to nitrogen
  E) death
  Show Answer
  The correct answer is A .
• Question 62: The spores of mucor are dispersed by Options:
  A) water
  B) wind
  C) insects
  D) explosive mechanism
  Show Answer
  The correct answer is B .
• Question 63: Green plants are distinguished from other living organisms by their ability to Options:
  A) make use of water
  B) make use of oxygen
  C) respond to sunlight
  D) manufactured their own food
  Show Answer
  The correct answer is D .
• Question 64: The structure that is most commonly identified in all living cells under the light microscope is the Options:
  A) mitochondrion
  B) chloroplast
  C) nucleus
  D) ribosome
  Show Answer
  The correct answer is C .
• Question 65: Which group of plants would be the first colonizers in an ecological succession changing rocks to soil? Options:
  A) Mosses
  B) Ferns
  C) Lichens
  D) Grasses
  Show Answer
  The correct answer is C .
• Question 66: Viruses differ from all forms of life because they Options:
  A) have thick cell wall
  B) feed on waste products of other organisms
  C) causes infectious diseases
  D) require other living cells to multiply
  Show Answer
  The correct answer is D .
• Question 67: In epigeal germination, the cotyledons are Options:
  A) carried above the ground by the elongation hypocotyl
  B) pulled underground by the elongating epicotyl
  C) pulled underground by the elongating epicotyl
  D) carried above the ground by the elongating epicotyl
  Show Answer
  The correct answer is A .
• Question 68:

  

  In the diagram, it shows that the orgasms are

  Options:
  A) hermaphrodite
  B) viviparous
  C) oviparous
  D) ovoviviparous
  Show Answer
  The correct answer is C .
• Question 69: The crossing of individuals of the same species with different genetic characters is Options:
  A) cross breeding
  B) polygenic inheritance
  C) non-disjunction
  D) inbreeding
  Show Answer
  The correct answer is D .
• Question 70: Which of the vertebra has a projection called odontoid process? Options:
  A) Atlas
  B) Axis
  C) Thoracic
  D) Lumber
  E) Caudal
  Show Answer
  The correct answer is B .