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 231:

  The hormones secreted by pancreas serves to

  Options:
  A) Facilitate the development of facial hairs
  B) Raise the level of calcium in the blood
  C) Lower blood glucose level
  D) Make the body react to emergencies
  Show Answer
  The correct answer is C .
• Question 232: The functions of endoplasmic reticulum is Options:
  A) protein synthesis
  B) intracellular transport of materials
  C) digestion and destruction of foreign bodies
  D) production of energy from glucose
  Show Answer
  The correct answer is B .
• Question 233: The scapula and the ischium are part of the Options:
  A) pectoral girdle
  B) pelvic girdle
  C) appendicular skeleton
  D) hind limb
  Show Answer
  The correct answer is C .
• Question 234:

  

  The point marked I is referred to as

  Options:
  A) myelin sheath
  B) dendrites
  C) axon
  D) node of Ranvier
  Show Answer
  The correct answer is D .
• Question 235: The male cockroach differs from the female by having Options:
  A) mandibles
  B) a pair of style
  C) spiracles
  D) a pair of cerci
  Show Answer
  The correct answer is B .
• Question 236: The basic point of impact by changes which produce mutation is the Options:
  A) gametes
  B) chromosomes
  C) phenotype
  D) zygote
  Show Answer
  The correct answer is B .
• Question 237: The adaptive importance of the nuptial flight from termite colonies is to Options:
  A) ensure cross-breeding between members of one colony and another
  B) disperse the reproductives in order to establish new colonies
  C) provide abundant food for birds and other animals during the early rains
  D) expel the reproductives so as to provide enough food for other members
  Show Answer
  The correct answer is B .
• Question 238:

  The association between two organisms living together in which only one benefits from the association while the other is neither benefited nor harmed is

  Options:
  A) Predation
  B) Competition
  C) Commensalism
  D) Dispersal
  Show Answer
  The correct answer is C .
• Question 239: If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be Options:
  A) 2:1
  B) 1:2
  C) 1:1
  D) 1:3
  E) 3:1
  Show Answer
  The correct answer is C .
• Question 240:

  Most fishes do not sink in water because of the presences of:
  I. swim bladder
  II. air bladder
  III. air sacs
  IV. air in spongy bones

  Options:
  A) II and III are correct
  B) I and II are correct
  C) I, II, III and IV are correct
  D) III and IV are correct
  Show Answer
  The correct answer is B .