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 1241:

  

  The diagram represents

  Options:
  A) sensory neurone
  B) relay neurone
  C) afferent neurone
  D) motor neurone
  Show Answer
  The correct answer is D .
• Question 1242: The end product of glycolysis in plants and animals is Options:
  A) pyruvic acid
  B) citric acid
  C) aspartic acid
  D) malic acid
  Show Answer
  The correct answer is A .
• Question 1243: From evolutionary standpoint , the older a fossil-bearing rocks is, the more likely it is to contain Options:
  A) aves as opposed to amphibians
  B) invertebrates as opposed to vertebrates
  C) angiosperms as opposed to algae
  D) vertebrates as opposed to invertebrates
  Show Answer
  The correct answer is B .
• Question 1244:

  

  What is the part marked X in the figure above called?

  Options:
  A) Pulmonary artery
  B) Pulmonary vein
  C) Vena cava
  D) Main aorta
  E) Hepatic artery
  Show Answer
  The correct answer is A .
• Question 1245: The excretory organ in insects is the Options:
  A) kidney
  B) malpighian tubule
  C) flame cell
  D) nephridium
  Show Answer
  The correct answer is B .
• Question 1246: In mammals, the exchange of nutrients and metabolic products occurs in the Options:
  A) lymph
  B) lungs
  C) heart
  D) liver
  Show Answer
  The correct answer is A .
• Question 1247: Secondary thickening is initiated in a dicotyledonous stem by the Options:
  A) xylem parenchyma
  B) secondary phloem
  C) endodermis
  D) cambium
  Show Answer
  The correct answer is D .
• Question 1248:

  If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is

  Options:
  A) $\frac{1}{2}$
  B) $\frac{3}{4}$
  C) $\frac{1}{4}$
  D) $1$
  Show Answer
  The correct answer is C .
• Question 1249: Organisms in an ecosystem are usually grouped according to their trophic level as Options:
  A) carnivores and epiphytes
  B) consumers and parasites
  C) producers and consumers
  D) producers and saprophytes
  Show Answer
  The correct answer is C .
• Question 1250: One of adaptation of Cactus opuntia to conserve water is the reduction of Options:
  A) internodes
  B) stem to leaves
  C) leaves to spine
  D) flower size
  Show Answer
  The correct answer is C .