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 91: In mosses the structure which performs the function of water absorption is the _________? Options:
  A) root hairs
  B) rhizoids
  C) capsule
  D) hyphae
  Show Answer
  The correct answer is B .
• Question 92: Normally the flow of blood is NEVER from Options:
  A) artery to arterioles
  B) arterioles to capillaries
  C) capillaries to venules
  D) arteerioles to the artery
  E) venules to the vein
  Show Answer
  The correct answer is D .
• Question 93: The force that holds water together in the form of a stream within the xylem tube is the Options:
  A) cohesion of water molecules to one another by hydrogen bonds
  B) force of gravity attacking the water molecules through the hydrogen bonds
  C) attraction between the water and xylem osmotic force
  D) normal flow of water from the ground with help of gravitational force
  Show Answer
  The correct answer is A .
• Question 94:

  The villus in the small intestine is significant because it?

  Options:
  A) increases the surface area for absorption
  B) increases the surface area for digestion
  C) assists in mixing digested food
  D) assists in filtering undigested food
  Show Answer
  The correct answer is A .
• Question 95: In epigeal germination, the cotyledons are Options:
  A) carried above the ground by the elongation hypocotyl
  B) pulled underground by the elongating epicotyl
  C) pulled underground by the elongating epicotyl
  D) carried above the ground by the elongating epicotyl
  Show Answer
  The correct answer is A .
• Question 96: The ability of the cockroach to live in cracks and crevices is enhanced by the possession of Options:
  A) wings and segmented body
  B) compound eyes
  C) claws on the leg
  D) dorso-ventrally flattened body
  Show Answer
  The correct answer is D .
• Question 97:

  

  In the diagram, the genotypic ratio of the offspring of the cross is

  Options:
  A) 1:2
  B) 1:2:1
  C) 1:1:1:1
  D) 3:1
  Show Answer
  The correct answer is B .
• Question 98:

  Ecological Zone	Temperature (oC)	Rainfall (mm)
  I	45	300
  II	32	2000
  III	30	2200
  IV	15	800

  From the table above which of the zones is likely to be desert?

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is A .
• Question 99: Countershading is an adaptive feature that enables animals to Options:
  A) fight enemies
  B) remain undetected
  C) warn enemies
  D) attract mates
  Show Answer
  The correct answer is B .
• Question 100: Which of these parts of the mammalian ears is directly concerned with the sense of balance? Options:
  A) Cochlea
  B) Eustachian tube
  C) Ear-drum
  D) Pinna
  E) Semicircular canals
  Show Answer
  The correct answer is E .