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 1011: Which of the following biomass could be characterized by very low rainfall,cold nights, hot days, and fast blooming plants? Options:
  A) northern guinea savanna
  B) sounthern guinea savanna
  C) tropical desert
  D) montane forest
  Show Answer
  The correct answer is C .
• Question 1012: Th chitin in the exoskeleton of many arthropods is strengthened by Options:
  A) calcium compounds
  B) organic salts
  C) lipids
  D) proteins
  Show Answer
  The correct answer is A .
• Question 1013:

  

  In the diagram, the part labelled I represents the

  Options:
  A) base pairs
  B) ribose sugar
  C) phosphate linkage
  D) deoxyri-bose sugar
  Show Answer
  The correct answer is A .
• Question 1014: The lowest unit of classification is the Options:
  A) class
  B) genus
  C) phylum
  D) species
  Show Answer
  The correct answer is D .
• Question 1015:

  Which of the following groups of organisms has kidney as the excretory organ?

  Options:
  A) Fishes, amphibians, birds, man
  B) Fishes, amphibians, annelids, insects
  C) Fishes, reptiles, birds, tapeworm
  D) Fishes, protozoans, amphibians, man
  Show Answer
  The correct answer is A .
• Question 1016: One of the accessory organs of the digestive system is the Options:
  A) Kidney
  B) Spleen
  C) liver
  D) lung
  Show Answer
  The correct answer is C .
• Question 1017: The initial volume of water poured into 60g bag of dry soil was 50ml and the amount that drained through was 35ml. The percentage water content of the fully soaked soil is therefore Options:
  A) 46.7
  B) 25.0
  C) 20.0
  D) 30.0
  E) 58.3
  Show Answer
  The correct answer is D .
• Question 1018: From which group of animals are the mammals generally believed to have most recently evolved? Options:
  A) Reptiles
  B) Fish
  C) Amphibians
  D) Birds
  Show Answer
  The correct answer is C .
• Question 1019:

  

  The lime water in container B turned milky because

  Options:
  A) carbon dioxide was produced by plant
  B) during respiration carbon dioxide entered C
  C) oxygen reacts with lime water to produce milkiness
  D) soda lime did not remove carbon dioxide from air
  E) the delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 1020:

  Which of the following factors is not considered in a terrestial habitat?

  Options:
  A) Temperature
  B) Sunlight
  C) Humidity
  D) Turbidity
  Show Answer
  The correct answer is D .