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 271:

  

  Which of the following results is to be expected if the set up is left for several hours?

  Options:
  A) decrease in the size of the yam
  B) movement of the salt solution into the water
  C) decrease in the volume of water inside the yam
  D) movement of water from the salt solution into the yam
  Show Answer
  The correct answer is C .
• Question 272:

  

  Use the diagram above to answer this question.

  The function of the structure labelled l is to

  Options:
  A) stimulate the development of secondary sexual characters
  B) prepare the body for any emergency
  C) maintain proper glucose concentration in the blood
  D) regulate the activities of other endocrine glands
  Show Answer
  The correct answer is D .
• Question 273: The type of reproduction that leads to variation animal and plant population is Options:
  A) budding
  B) sexual
  C) vegetative
  D) asexual
  Show Answer
  The correct answer is B .
• Question 274: Fruits which develop without fertilization are described as Options:
  A) simple
  B) pathencorpic
  C) aggregate
  D) compound
  Show Answer
  The correct answer is B .
• Question 275:

  

  The joint at Y in the figure above is

  Options:
  A) ball and socket
  B) hinge
  C) pivot
  D) rivet
  E) none of the above
  Show Answer
  The correct answer is B .
• Question 276: The correct sequence for the perception of smell in mammals is Options:
  A) chemicals → olfactory nerve endings → brain
  B) dissolved chemicals → nasal sensory cell → brain
  C) chemicals → mucus membrane → sensory cells→ brain
  D) dissolved chemicals → sensory cells → olfactory nerve → brain
  Show Answer
  The correct answer is D .
• Question 277: The function of the clitellum in the earthworm is to Options:
  A) aid digestion
  B) prevent desiccation
  C) assist locomotion
  D) secrete cocoon
  Show Answer
  The correct answer is D .
• Question 278: 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 279:

  Mass of crucible = 10g

  Mass of 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) 50%
  Show Answer
  The correct answer is D .
• Question 280: The organism that has a hydrostatic skeleton is Options:
  A) Tilapia
  B) Hydra
  C) mosquito larva
  D) earthworm
  Show Answer
  The correct answer is D .