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 2251:

  Which of the following is TRUE of the process of conjugation in Paramecium?

  Options:
  A) Micronucleus disintegrates
  B) Each ex-conjugant divides only once
  C) Macro nucleus undergoes division
  D) Each micronucleus divides twice
  Show Answer
  The correct answer is D .
• Question 2252: The tissue which connects a muscle to a bone is a Options:
  A) cartiligae
  B) muscle fibre
  C) tendon
  D) ligament
  E) connecting fibre
  Show Answer
  The correct answer is C .
• Question 2253: The bone of the neck on which the skull rests is known as the Options:
  A) odontoid process
  B) axis
  C) atlas
  D) occipital condyle
  Show Answer
  The correct answer is C .
• Question 2254: Which of the following correctly summarizes the life cycle of fern plant? Options:
  A) Spore → prothallus → thallus → sporangium
  B) Male and female gamentangia → zygospores → sporangium → spores
  C) Spore → thallus → spermatozoa + ovum → sporangium
  D) Prothallus → spermatozoid → +egg cell → leafy plant → sporangium → spore
  Show Answer
  The correct answer is D .
• Question 2255:

  

  The organism above is

  Options:
  A) chlamydomonas
  B) algae
  C) volvox
  D) euglena
  Show Answer
  The correct answer is C .
• Question 2256: What is the primary function of cofactors? Options:
  A) To aid in enzyme function
  B) To synthesize enzymes
  C) To inhibit enzymes
  D) To break down old enzymes
  Show Answer
  The correct answer is A .
• Question 2257:

  

  Yam is used in this set-up because it

  Options:
  A) is a permeable to the salt solution
  B) is a plant material
  C) acts as a storage organ
  D) acts as a semi-permeable membrane
  Show Answer
  The correct answer is D .
• Question 2258: An example of a non-bio degrable pollutants is Options:
  A) dung
  B) bones
  C) ceramics
  D) woods
  Show Answer
  The correct answer is C .
• Question 2259: Blood clotting is initiated by Options:
  A) Leucocytes
  B) Platelets
  C) Haemolymph
  D) Haemoglobin
  E) Erythrocytes
  Show Answer
  The correct answer is B .
• Question 2260: The main waste products formed in plants are Options:
  A) alkaloids tannins and resins
  B) water, alkaloids and carbondioxde
  C) oxygen, carbondioxide and alkaloids
  D) water, carbondioxide and oxygen
  Show Answer
  The correct answer is A .