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 181: The aperture between the left auricle and the left ventricle is guarded by the Options:
  A) auricles valve
  B) tricupid valve
  C) ventricles valve
  D) bicuspid valve
  Show Answer
  The correct answer is D .
• Question 182: Which of the following statement is NOT true of symbiosis? Options:
  A) Symbionts must be living
  B) It is an association of 'give and take'
  C) The association may involve two plants
  D) Association between two similar species
  E) Symbionts derive mutual benefit
  Show Answer
  The correct answer is D .
• Question 183: In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m² quadrat. What is the density of the plants in the field? Options:
  A) 1.2 per m²
  B) 2.4 per m²
  C) 4.8 per m²
  D) 9.6 per m²
  Show Answer
  The correct answer is A .
• Question 184: The inheritable characters that are determined by a gene located on the X-chromosome is Options:
  A) recessive
  B) sex-linked
  C) homozygous
  D) dominant
  Show Answer
  The correct answer is B .
• Question 185:

  Epiphytes growing on the branches of trees provide an example of the relationship known as?

  Options:
  A) parasitism
  B) commensalism
  C) saprophytism
  D) holophytism
  Show Answer
  The correct answer is B .
• Question 186: Which of the following diseases can be prevented by innoculation? Options:
  A) Syphilis
  B) Malaria fever
  C) Tuberculosis
  D) Acquired Immune Deficiency Syndrom
  Show Answer
  The correct answer is C .
• Question 187: Where is the food stored in yam plant? Options:
  A) stem
  B) Bud
  C) Adventitous root
  D) Leaves
  E) Tap root
  Show Answer
  The correct answer is A .
• Question 188: In addition to the high calories derived from fats and oils, they are Options:
  A) used in producing new cells
  B) necessary for enzyme formation
  C) used as insulators for cold
  D) required for growth
  Show Answer
  The correct answer is C .
• Question 189: A soil consisting of alumina and iron (II)oxide is known as Options:
  A) loamy soil
  B) clayey soil
  C) laterite
  D) podzol
  Show Answer
  The correct answer is C .
• Question 190:

  Only specially adapted micro-organisms are found in

  Options:
  A) Salty water
  B) Humid air
  C) Moist soil
  D) Mouth cavities
  Show Answer
  The correct answer is A .