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 41:

  Total salt content in blood is about

  Options:
  A) 1.85 to 1.9%
  B) 11.85 to 11.9%
  C) 2.85 to 2.9%
  D) 0.85 to 0.9%
  Show Answer
  The correct answer is D .
• Question 42: Which of the following statements is NOT true of mammalian erythrocytes? Options:
  A) They have haemoglobin
  B) they appear yellow when looked at singly
  C) They are disc shaped
  D) The cell are more numerous than leucocytes
  E) They have nuclei at maturity
  Show Answer
  The correct answer is E .
• Question 43: The gall bladder of mammal has a duct connected to the Options:
  A) liver
  B) duodenum
  C) small intestine
  D) pancreas
  Show Answer
  The correct answer is A .
• Question 44: An organism which lives on the remain of dead plant is Options:
  A) An endoparasite
  B) Saprophyte
  C) Commensal
  D) Symbiont
  E) ectoparasite
  Show Answer
  The correct answer is B .
• Question 45: The structural adaptation of desert plants for water conservation is Options:
  A) broad leaves with numerous stomata
  B) spongy mesophyll
  C) spiny leaves
  D) prominent stomata in leaves
  Show Answer
  The correct answer is C .
• Question 46: Which of these is not the part of the eye? Options:
  A) Cochlea
  B) Conjunctiva
  C) Cornea
  D) Iris
  Show Answer
  The correct answer is A .
• Question 47: Regulation of blood sugar level takes place in the Options:
  A) pancreas
  B) iluem
  C) liver
  D) kidney
  Show Answer
  The correct answer is C .
• Question 48: 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 49:

  

  The grand period of growth is represented by

  Options:
  A) N
  B) M
  C) L
  D) K
  Show Answer
  The correct answer is A .
• Question 50: The ability of an organism to live successfully in an environment is known as Options:
  A) resistance
  B) competetion
  C) succession
  D) adaptation
  Show Answer
  The correct answer is D .