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 1021: Which of the following is an organ? Options:
  A) Guard cell
  B) Liver
  C) Xylem bundle
  D) Blood
  Show Answer
  The correct answer is B .
• Question 1022: which of the organisms will have the lowest population in an ecosystem? Options:
  A) Hawk
  B) Cowpea
  C) Praying mantis
  D) Mouse
  Show Answer
  The correct answer is A .
• Question 1023: The biome that is characterized with large herbivores, few and scattered fire resistant trees is Options:
  A) savanna
  B) tropical rain forest
  C) montane forest
  D) desert
  Show Answer
  The correct answer is A .
• Question 1024:

  

  Which of the labelled part in the figure above will develop into new bulb?

  Options:
  A) 1
  B) 4
  C) 2
  D) 3
  E) 5
  Show Answer
  The correct answer is D .
• Question 1025: Hydra removes undigested food by Options:
  A) passing it through the anus
  B) passing it through the mouth
  C) means of a contractile vacuole
  D) egesting it through the body surface
  Show Answer
  The correct answer is B .
• Question 1026: In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m² quadrat. What is the density of the plants in the field? Options:
  A) 1.2 per m²
  B) 2.4 per m²
  C) 4.8 per m²
  D) 9.6 per m²
  Show Answer
  The correct answer is A .
• Question 1027: In the woody stems, gaseous exchange takes place through the Options:
  A) micropyles
  B) stomata
  C) lenticels
  D) vessels
  Show Answer
  The correct answer is C .
• Question 1028: In blood transfusion, agglutination occurs when Options:
  A) white blood cells from two individuals meet
  B) two different antibodies meet
  C) two different antigens meet
  D) contrasting antigens and antibodies meet
  Show Answer
  The correct answer is D .
• Question 1029: Oozing out of water from the leaves of plants in a humid environment is known as Options:
  A) transpiration
  B) osmosis
  C) pinocytosis
  D) guttation
  Show Answer
  The correct answer is D .
• Question 1030: The transect method can be used in ecology to show the Options:
  A) Number of plants and animals in a habitat
  B) Population of a particular plant species
  C) Distribution of organisms along a line
  D) Heights of trees in section of a forest
  E) Number of young plants across a forest
  Show Answer
  The correct answer is A .