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 771: Which of the following statements gives the BEST description of bark? Options:
  A) Tissue outside the vascular cambium
  B) Cork-like tissue found only in stems
  C) Brown tissue never found in primary growth
  D) Cork-like tissues of old trees
  Show Answer
  The correct answer is B .
• Question 772: The deficiency of vitamin D leads to Options:
  A) scurvy
  B) pellagra
  C) rickets
  D) beriberi
  E) polio
  Show Answer
  The correct answer is C .
• Question 773:

  Hydra removes undigested food by

  Options:
  A) passing it through the anus
  B) passing it through the mouth
  C) means of a contractile vacuole
  D) egesting it through the body surface
  Show Answer
  The correct answer is B .
• Question 774: In dissection, the rib cage of mammal has to be opened in order to expose the Options:
  A) diaphragm
  B) liver
  C) heart
  D) sternum
  Show Answer
  The correct answer is C .
• Question 775: Which of the following is a characteristics of a bacteria except _______? Options:
  A) they can be seen under microscope
  B) they range from 0.5 µ m in diameter
  C) They are grouped accordingly to their cell shape
  D) they do not cause disease
  Show Answer
  The correct answer is D .
• Question 776: Which of the following statements is TRUE of inhalation of air by man? Options:
  A) The ribs are not raised
  B) Diaphragm is raised
  C) Intercostal muscles relax
  D) Pressure of the thoracic cavity increase
  E) Size of thoracic cavity increase
  Show Answer
  The correct answer is E .
• Question 777: Which of the following is the direct consequence of transferring energy from one trophic level to another? Options:
  A) An increase in biomass
  B) A decrease in the efficiency
  C) An increase in the total numbers of resulting individuals
  D) A decrease in the resulting biomass
  Show Answer
  The correct answer is D .
• Question 778: 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 779: An example of plant adaptation to a xerophytic environment is represented by the development of Options:
  A) fleshy tissue and reduced leaves
  B) broad canopy and extensive surface root system
  C) thick barks and broad leaves
  D) rough leaves and shallow root system
  Show Answer
  The correct answer is A .
• Question 780:

  Which of the following statement describes an autonomic nervous system

  Options:
  A) It always stimulates effectors
  B) Activities are voluntary
  C) It dials with external stimuli and their responses
  D) It affects glands, cardia muscles and smooth muscles
  Show Answer
  The correct answer is D .