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 2271:

  The following processes are involved during expiration in man except

  Options:
  A) The inter costal muscles relax
  B) The thoracic activity first increases in volume
  C) The sternum moves inward
  D) The ribs are moved downwards and inwards
  Show Answer
  The correct answer is B .
• Question 2272: A plant which has a horizontal underground stem is Options:
  A) rhizome
  B) corm
  C) creeper
  D) tuber
  E) bulb
  Show Answer
  The correct answer is A .
• Question 2273:

  Viruses are pathogens of the following diseases except

  Options:
  A) Tuberculosis
  B) Measles
  C) Small pox
  D) Poliomyelitis
  Show Answer
  The correct answer is A .
• Question 2274:

  

  The diagram represents

  Options:
  A) sensory neurone
  B) relay neurone
  C) afferent neurone
  D) motor neurone
  Show Answer
  The correct answer is D .
• Question 2275:

  

  The breeding posture illustrated in the diagram is known as

  Options:
  A) mating
  B) amplexus
  C) courtship display
  D) reproductive swimming
  Show Answer
  The correct answer is B .
• Question 2276: A man with normal haemoglobin (AA) marries a woman who has sickle-cell haemoglobin (SS). They have a child who has a sickle-cell trait. Which of the following genotypes could be associated with the child’s haemoglobin? Options:
  A) AA
  B) OO
  C) AO
  D) AS
  E) SS
  Show Answer
  The correct answer is D .
• Question 2277: 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 2278: Mammals acclimatize to reduced oxygen content at high altitudes by Options:
  A) the stimulation of marrow to reduce the amount of erythrocytes produced
  B) increasing the rate at which erythrocytes are destroyed
  C) the stimulation of marrow to produce more erythrocytes
  D) increasing the break down of the protein portion of the erythrocytes
  Show Answer
  The correct answer is A .
• Question 2279:

  Blood circulation in a mammal is said to be double because

  Options:
  A) It passes twice through the heart in a complete circuit
  B) It moves in both arteries and veins
  C) It circulates in both the hands and other organs
  D) The heart contains auricles and ventricles
  Show Answer
  The correct answer is A .
• Question 2280:

  Which of the following instruments is NOT used in measuring abiotic factors in any habitat?

  Options:
  A) microscope
  B) thermometer
  C) hygrometer
  D) windvane
  Show Answer
  The correct answer is A .