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 1041: After one week of life, the weight of five chicks of the same sex hatched simultaneously from the eggs of the same hen and fed on the same diet were 45g, 40g, 35g, 33g and 30g. This is an example of Options:
  A) growth rate
  B) natural selection
  C) variation
  D) mutation
  Show Answer
  The correct answer is C .
• Question 1042:

  

  The organ through which the embryo receives food, water and oxygen is labelled

  Options:
  A) III
  B) IV
  C) II
  D) I
  Show Answer
  The correct answer is C .
• Question 1043: In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the Options:
  A) movement of auxins away from the region of curvature
  B) even distribution of auxins in all parts of the coleoptile
  C) inhibition of growth by auxins in the region f smaller curvature
  D) concentration of auxins in the region of curvature
  E) absence of auxins in the coleoptile
  Show Answer
  The correct answer is D .
• Question 1044:

  

  Which organism in the pyramid functions as a tertiary consumer?

  Options:
  A) Algea
  B) Shark
  C) Tadpole
  D) Tilapia
  Show Answer
  The correct answer is B .
• Question 1045: The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the Options:
  A) veins
  B) right auricle
  C) arteries
  D) left ventricle
  Show Answer
  The correct answer is D .
• Question 1046: Most monocots are easily recognized by their Options:
  A) short leaves with petioles
  B) long and sword-like leaves
  C) long and palm like leaves
  D) short with veinlets
  Show Answer
  The correct answer is B .
• Question 1047: When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to Options:
  A) the addition of saccharin
  B) the addition of sugar
  C) the addition of whisky or local gin
  D) some complex hydrolytic reaction
  E) anaerobic respiration of an organism
  Show Answer
  The correct answer is E .
• Question 1048: A farm practice that result in the loss of soil fertility is Options:
  A) mixed farming
  B) bush fallowing
  C) shifting cultivation
  D) continous cropping
  Show Answer
  The correct answer is D .
• Question 1049:

  The gland that is present close to Trachea

  Options:
  A) Pancreas
  B) Liver
  C) Adrenal
  D) Thyroid
  Show Answer
  The correct answer is D .
• Question 1050:
  

  Which of the following structure is associated with aerobic respiration?

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .