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 1951: The correct increasing order of size for the cell components responsible for heredity is Options:
  A) chromosome → DNA → nucleus → gene
  B) DNA → gene → chromosome → nucleus
  C) chromosome → nucleus → DNA → gene
  D) DNA → gene → nucleus → chromosome
  Show Answer
  The correct answer is B .
• Question 1952: Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the Options:
  A) liver of humans
  B) reticuloendothelial cells of humans
  C) Malphigian tubules of mosquito
  D) brain of humans
  Show Answer
  The correct answer is A .
• Question 1953: Which of the following animals has homodont dentition? Options:
  A) Rat
  B) Man
  C) Lizard
  D) Pigeon
  Show Answer
  The correct answer is C .
• Question 1954: The first step in the process of photosynthesis is the Options:
  A) activation of the chlorophyll
  B) photolysis of water
  C) reduction of carbondioxide
  D) formation of sugar
  Show Answer
  The correct answer is A .
• Question 1955: Which of the following is caused by Treponema palladium? Options:
  A) Gonorrhea
  B) Leprosy
  C) Tuberculosis
  D) Syphilis
  Show Answer
  The correct answer is D .
• Question 1956: The by-product of photosynthesis is Options:
  A) CO2
  B) O2
  C) C6H12O6
  D) H2O
  Show Answer
  The correct answer is B .
• Question 1957:

  

  Use the diagram above to answer this question.

  The part labelled l is the

  Options:
  A) pulmonary artery
  B) vena cava
  C) aorta
  D) bicuspid valve
  Show Answer
  The correct answer is C .
• Question 1958: The complex relationship between the members of a community and between the community as a whole and its physical environment is Options:
  A) Ecosystem
  B) Habitat
  C) Environment
  D) Niche
  E) Micro habitat
  Show Answer
  The correct answer is A .
• Question 1959: The association between termites and the cellulose - digesting protozoans in their guts is an example of Options:
  A) saprophytism
  B) mutualism
  C) parasitism
  D) commensalism
  Show Answer
  The correct answer is B .
• Question 1960: In the transverse of a dicot sperm, the region lying between the endodermis and the vascular bundle is the Options:
  A) parenchyma
  B) pericycle
  C) phloem
  D) hypodermis
  Show Answer
  The correct answer is B .