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 601: The basking of Agama lizards in the sun is to Options:
  A) change the colour of their body
  B) raise their body temperature to become active
  C) fight to defend their territories
  D) attract the female for courtship
  Show Answer
  The correct answer is B .
• Question 602: The breakdown of fats and oils into simpler absorbable compounds is catalyzed by the group of enzymes called Options:
  A) lipases
  B) hydrolases
  C) amylases
  D) peptidases
  Show Answer
  The correct answer is A .
• Question 603: An ecological factor that will have the most limiting effects on the abundance of phytoplankton in a turbid pond is Options:
  A) pH
  B) oxygen
  C) light
  D) temperature
  Show Answer
  The correct answer is C .
• Question 604:

  Which of the following statement describes an autonomic nervous system

  Options:
  A) It always stimulates effectors
  B) Activities are voluntary
  C) It dials with external stimuli and their responses
  D) It affects glands, cardia muscles and smooth muscles
  Show Answer
  The correct answer is D .
• Question 605: The flow of air and water in or out of the mesophyll layer of a leaf is controlled by the Options:
  A) stomata
  B) lenticels
  C) air space
  D) guard cell
  Show Answer
  The correct answer is D .
• Question 606:

  In the root vascular system, the stele is directly surrounded by the

  Options:
  A) pericycle
  B) cortex
  C) endodermis
  D) parenchyma
  Show Answer
  The correct answer is C .
• Question 607: One of the accessory organs of the digestive system is the Options:
  A) Kidney
  B) Spleen
  C) liver
  D) lung
  Show Answer
  The correct answer is C .
• Question 608: The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the Options:
  A) tropical rainforest
  B) mangrove swamps
  C) gressland
  D) montane forest
  Show Answer
  The correct answer is B .
• Question 609:

  The part of the ear which contains nerve cells sensitive to sound vibrations is the

  Options:
  A) cochlea
  B) ampulla
  C) tympanum
  D) malleus
  Show Answer
  The correct answer is A .
• Question 610: Which of the following structure is adapted for feeding in a bird of prey? Options:
  A) Hooked break and sharp claws
  B) Smooth beak and strong claws
  C) Big beaks and strong feet
  D) Pointed beak and strong claws
  Show Answer
  The correct answer is A .