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 321: The vector for the malaria parasite is a Options:
  A) female edes mosquito
  B) female Anopheles mosquito
  C) female culex mosquito
  D) female culex mosquito
  Show Answer
  The correct answer is B .
• Question 322: If a DNA strand has a base sequence TCA, its complementary strand must be Options:
  A) ATG
  B) TAG
  C) GAT
  D) AGT
  Show Answer
  The correct answer is D .
• Question 323: Red coloration on the head of a male lizard helps it to Options:
  A) mark is territory
  B) camouflage in the enviroment
  C) secure its mate
  D) defend itself
  Show Answer
  The correct answer is C .
• Question 324: The association in which one member benefits and the other is relatively unaffected by the interaction is termed Options:
  A) symbiosis
  B) parasitism
  C) commensalism
  D) mutualism
  Show Answer
  The correct answer is C .
• Question 325:

  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 326:

  In the egg of a bird, the embryo is located in the

  Options:
  A) Chalaza
  B) Yolk
  C) Albumen
  D) Embryo disc
  Show Answer
  The correct answer is B .
• Question 327: The bright coloured eye spots on the wings of moth are an example of Options:
  A) warning colouration
  B) disruptive colouration
  C) crypsis
  D) mimicry
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  The correct answer is D .
• Question 328:

  Mass of a crucible = 10g,

  Mass of a 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) 60%
  Show Answer
  The correct answer is D .
• Question 329: The uniqueness of an individual organism in a population is accounted for by Options:
  A) evolution
  B) variation
  C) adaptation
  D) mutation
  Show Answer
  The correct answer is C .
• Question 330:

  The gland that is present close to Trachea

  Options:
  A) Pancreas
  B) Liver
  C) Adrenal
  D) Thyroid
  Show Answer
  The correct answer is D .