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 871: The sequence of the one-way gaseous exchange mechanism in a fish is Options:
  A) gills ⇢ operculum ⇢ mouth
  B) mouth ⇢ gills ⇢ operculum
  C) mouth ⇢ operculum ⇢ gills
  D) operculum ⇢ mouth ⇢ gills
  Show Answer
  The correct answer is B .
• Question 872: Ability to taste PTC in some individuals is a character that is Options:
  A) acquired
  B) heritable
  C) sex-linked
  D) morphological
  Show Answer
  The correct answer is B .
• Question 873: The absence of anti-diuretic hormone in humans results in Options:
  A) decreasing dehydration
  B) drastic dehydration
  C) eliminating dehydration
  D) increasing dehydration
  Show Answer
  The correct answer is D .
• Question 874: Which of the following is the youngest plant tissue Options:
  A) Meristem
  B) Phloem
  C) Epidermis
  D) Xylem
  Show Answer
  The correct answer is A .
• Question 875: Which of the following is not an excretory organ? Options:
  A) Lungs
  B) Kidney
  C) Leaf
  D) Large intestine
  E) Skin
  Show Answer
  The correct answer is C .
• Question 876: The mode of nutrition exhibited by a tapeworm is Options:
  A) symbiotic
  B) saprophytic
  C) parasitic
  D) holozoic
  Show Answer
  The correct answer is C .
• Question 877:

  Which of the following is the best explanation for a child who is phenotypically short and born of two tall parents?

  Options:
  A) both parents possess genes for shortness
  B) the father possesses a gene for shortness
  C) nature makes the child short
  D) the mother possesses a gene for shortness
  Show Answer
  The correct answer is A .
• Question 878: The construction of dams may lead to an increase in the prevalence of Options:
  A) typhoid fever, measles and yellow fever
  B) tuberculosis, leprosy and trypanosomiasis
  C) guinea worm, malaria and tuberculosis
  D) malaria, bilharziasis and onchocerciasis
  Show Answer
  The correct answer is D .
• Question 879:

  The organic molecule(s) present in the nucleus is/are

  Options:
  A) DNA
  B) Protein, DNA, RNA
  C) ATP and RNA
  D) RNA
  Show Answer
  The correct answer is A .
• Question 880: The functions of endoplasmic reticulum is Options:
  A) protein synthesis
  B) intracellular transport of materials
  C) digestion and destruction of foreign bodies
  D) production of energy from glucose
  Show Answer
  The correct answer is B .