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 341:

  

  In the diagram, the association illustrated demonstrates

  Options:
  A) parasitism
  B) commensalism
  C) saprophytism
  D) mutualism
  Show Answer
  The correct answer is D .
• Question 342: The possession of scales, laying of eggs with shells and bony structure of the head are characteristics shared by Options:
  A) birds and reptiles
  B) fishes and birds
  C) reptiles and fishes
  D) birds and molluscs
  Show Answer
  The correct answer is C .
• Question 343: I. Parasitism → Sundew. ll. Autotrophism →Amoeba. III. Saprophytism → Alga. IV Heterotrophism → Agama.Which of the above modes of nutrition is correctly matched with the organism that exhibits it? Options:
  A) ll
  B) lll
  C) lV
  D) l
  Show Answer
  The correct answer is C .
• Question 344: A major difference between platyhelminthees and coelenterates is that platyhelminthes Options:
  A) are multicellular
  B) have developed a mesoderm
  C) reproduce sexually
  D) reproduce asexually
  Show Answer
  The correct answer is B .
• Question 345: The part that supplies food from the mother to the foetus is Options:
  A) Amnion
  B) Chorion
  C) Umbilical Cord
  D) Placenta
  Show Answer
  The correct answer is D .
• Question 346: The specialized pigment cells that are involved in colouration and colour change in animals Options:
  A) xanthophyl
  B) chromatophores
  C) chromatophyll
  D) melanin
  Show Answer
  The correct answer is B .
• Question 347:

  

  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 348: Which of the following instruments is used to demonstrate the response of roots and shoots to gravity? Options:
  A) Klinostat
  B) Manometer
  C) Porometer
  D) Potometer
  E) Photometer
  Show Answer
  The correct answer is A .
• Question 349:

  Mass of crucible = 10g

  Mass of crucible and soil before heating = 29g

  Mass of a crucible and soil after heating = 18g

  From the information above, determine the percentage of water in the given soil sample?

  Options:
  A) 20%
  B) 25%
  C) 40%
  D) 50%
  Show Answer
  The correct answer is D .
• Question 350: Which of the following organs regulates the levels of water, salts , hydrogen ions and urea in the mammalian blood? Options:
  A) Liver
  B) Kidney
  C) Bladder
  D) Colon
  Show Answer
  The correct answer is B .