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 1861: A population that doubles in size at constant intervals is an indication of Options:
  A) sigmoid growth
  B) exponential growth
  C) population explosion
  D) rapid growth
  Show Answer
  The correct answer is B .
• Question 1862: A carbohydrate molecule in the blood in the right ventricles of the heart is pumped into the cell of the toe of a man. Which of these structure is it unlikely to pass through en-route Options:
  A) pulmonary artery
  B) lungs
  C) Heart
  D) liver
  E) aorta
  Show Answer
  The correct answer is D .
• Question 1863: Irish potato is a Options:
  A) bulb
  B) tap root
  C) rhizome
  D) root tuber
  E) stem tuber
  Show Answer
  The correct answer is E .
• Question 1864:

  Which of the statements below is not characteristic of wind-pollinated flowers?

  Options:
  A) Stigmas are usually large and feathery
  B) Nectary is usually absent
  C) The pollen grains have rough spiny surfaces
  D) The flowers are not scented.
  Show Answer
  The correct answer is C .
• Question 1865: Which of the following is not a function of the mammalian skeleton? Options:
  A) Protection
  B) respiration
  C) Transportation
  D) Support
  Show Answer
  The correct answer is C .
• Question 1866: The sex-linked defect in which very slight cut produces severe bleeding is known as Options:
  A) anaesmia
  B) anorexia
  C) haemophilia
  D) haemolysis
  Show Answer
  The correct answer is C .
• Question 1867:

  

  The organ through which the embryo receives food, water and oxygen is labelled

  Options:
  A) III
  B) IV
  C) II
  D) I
  Show Answer
  The correct answer is C .
• Question 1868: A good example of a disploblastic bryophytes from flowering plants is the Options:
  A) ameoba
  B) hydra
  C) earthworm
  D) round worm
  Show Answer
  The correct answer is B .
• Question 1869:

  Which of the following is NOT a method of reproduction in animals?

  Options:
  A) Asexual reproduction
  B) Budding
  C) Sexual reproduction
  D) Sporulation
  Show Answer
  The correct answer is D .
• Question 1870:

  The structure that joins the two strands of a chromosome together is the?

  Options:
  A) spindle
  B) cellulose
  C) centromere
  D) chromatid
  Show Answer
  The correct answer is C .