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 2241: The carnassial teeth of a carnivorous animal consist of the Options:
  A) last upper premolar and the first lower molar
  B) last upper molar and the last lower molar
  C) first upper premolar and the lower molar
  D) first upper molar and the first lower molar
  Show Answer
  The correct answer is A .
• Question 2242: In man, spermatozoa are never found in the Options:
  A) testis
  B) urethra
  C) epididymis
  D) prostrate glands
  E) vas deferens
  Show Answer
  The correct answer is D .
• Question 2243: The flowering period of plants in a habitat is determined by the Options:
  A) duration of sunlight
  B) intensity and duration of rainfall
  C) relative humidity of the atmosphere
  D) temperature of the habitat
  Show Answer
  The correct answer is A .
• Question 2244:

  The curvature movement of plants in response to the stimulus of water is called

  Options:
  A) hydrotropism
  B) geotropism
  C) Phototropism
  D) thigmotropism
  Show Answer
  The correct answer is A .
• Question 2245:

  Which of the following is the most inclusive level of classification in the Linnaean system?

  Options:
  A) Kingdom
  B) Domain
  C) Class
  D) Phylum
  Show Answer
  The correct answer is A .
• Question 2246: Example of competitors are Options:
  A) lizard and mouse
  B) snake and lizard
  C) grasshopper and mouse
  D) rabbit and snake
  Show Answer
  The correct answer is B .
• Question 2247: The absence of anti-diuretic hormone in humans results in Options:
  A) decreasing dehydration
  B) drastic dehydration
  C) eliminating dehydration
  D) increasing dehydration
  Show Answer
  The correct answer is D .
• Question 2248: Chewing the cud is an adaptation peculiar to Options:
  A) Herbivores
  B) Omnivores
  C) Rodents
  D) Ruminants
  Show Answer
  The correct answer is D .
• Question 2249:

  

  The soil becomes toxic to plants when the concentration of its essential elements is in the range labelled

  Options:
  A) IV
  B) III
  C) II
  D) I
  Show Answer
  The correct answer is A .
• Question 2250: The blood vessel which carries blood from the alimentary canal to the liver is the Options:
  A) hepatic artery
  B) hepatic vein
  C) hepatic portal vein
  D) mesenteric artery
  Show Answer
  The correct answer is C .