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 141:

  A biome characterized by hot summer, warm winter and treeless vegetation is

  Options:
  A) Steppe grasslands
  B) Temperate deserts
  C) Savannah grassland
  D) Tropical deserts
  Show Answer
  The correct answer is A .
• Question 142:

  Ozone hole refers to

  Options:
  A) hole in ozone layer
  B) decrease in the ozone layer in troposphere
  C) decrease in thickness of ozone layer in stratosphere
  D) increase in the thickness of ozone layer in troposphere
  Show Answer
  The correct answer is C .
• Question 143:

  Which of the following waste products in plants is excreted through the stomata and lenticles?

  Options:
  A) carbon dioxide
  B) alkaloids
  C) tannins
  D) anthoocyanins
  Show Answer
  The correct answer is A .
• Question 144: The function of the red head in male Agama lizards is to Options:
  A) conceal and camouflage the animal from predators
  B) scare other males from the territory
  C) attract female lizards for mating purposes
  D) warm predators of the distastefulness of the animal
  Show Answer
  The correct answer is C .
• Question 145: 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 146: If an animal has diastema, it would NOT posses Options:
  A) incissors
  B) cannines
  C) premolars
  D) molars
  Show Answer
  The correct answer is B .
• Question 147: The rate of transpiration of a leafy shoot would be highest under Options:
  A) damp, cold, still air
  B) damp, warm, moving air
  C) dry, warm, moving air
  D) dry, cold, moving air
  E) dry, warm, still air
  Show Answer
  The correct answer is C .
• Question 148:

  

  The structure above represents a quill feather. The structure labelled 'M' is the

  Options:
  A) quill
  B) rachis
  C) superior umbilicus
  D) inferior umbilicus
  E) aftershaft
  Show Answer
  The correct answer is C .
• Question 149: Serum differs from blood plasma because Options:
  A) contains blood cells and fibrinogen
  B) contains soluble food and mineral salt
  C) lacks the blood protein and fibrinogen
  D) lacks blood cells and albumin
  Show Answer
  The correct answer is C .
• Question 150: Root hairs are developed from the Options:
  A) root apex
  B) epidermis of root
  C) vascular bundles
  D) endodermis
  E) pericycle
  Show Answer
  The correct answer is B .