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 761: The waste product of plants used in the conversion of hide to leather is Options:
  A) gum
  B) alkaloid
  C) tannin
  D) resin
  Show Answer
  The correct answer is C .
• Question 762: Which of the following is used mainly for balancing in fish? Options:
  A) the caudal fin
  B) the pectoral fin
  C) the anal fin
  D) the dorsal fin
  Show Answer
  The correct answer is D .
• Question 763:

  Albinism is an expression of trait controlled by

  Options:
  A) Chromosomes
  B) Recessive genes
  C) Dominant genes
  D) Mutation
  Show Answer
  The correct answer is B .
• Question 764: Oestrogen is a hormone that is synthesized in the Options:
  A) ovaries
  B) testes
  C) anterior pituitary
  D) adrenal cortex
  Show Answer
  The correct answer is A .
• Question 765: The behavioural adaptation in social insects could best be described as Options:
  A) symbiosis
  B) saprophytism
  C) parasitism
  D) commensalisms
  Show Answer
  The correct answer is A .
• Question 766: The earliest form of life in animal kingdom is the Options:
  A) class
  B) amphibian
  C) aves pisces
  D) reptilia
  Show Answer
  The correct answer is C .
• Question 767:

  

  A hormone secreted at IV serves to

  Options:
  A) make the body react to emergencies
  B) lower blood glucose level
  C) raise the level of calcium ions in the blood
  D) facilitate the development of facial hairs
  Show Answer
  The correct answer is D .
• Question 768:

  The structure that joins the two strands of a chromosome together is the?

  Options:
  A) spindle
  B) cellulose
  C) centromere
  D) chromatid
  Show Answer
  The correct answer is C .
• Question 769:

  One of the following is an effect of clay soil on vegetation

  Options:
  A) Supports luxuriant vegetation such as forest
  B) Supports scanty vegetation
  C) Does not support light vegetation
  D) Support arid vegetation
  Show Answer
  The correct answer is A .
• Question 770:

  

  The process by which water moves from X to Y through the semi-permeable membrane is called
  Options:
  A) diffusion
  B) osmosis
  C) active diffusion
  D) osmoregulation
  Show Answer
  The correct answer is B .