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: In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the Options:
  A) left ventrictle
  B) left auricle
  C) right ventricle
  D) right auricle
  Show Answer
  The correct answer is B .
• Question 142: A mosquito which produces eggs which float, and whose larvae lie horizontal to the water surface, also rests at the angle on a vertical surface. This type of mosquito is Options:
  A) Aedes
  B) Anopheles
  C) Culex
  D) Tiger mosquito
  E) none of the above
  Show Answer
  The correct answer is B .
• Question 143: The one-seeded fuit in which the pericarp and the seed coat have become fused together is known as Options:
  A) achene
  B) samara
  C) caryopsis
  D) legume
  E) drupe
  Show Answer
  The correct answer is C .
• Question 144: The phenotype of an individual can be summed up as the Options:
  A) totality of the expressed traits
  B) individual's physical appearance
  C) individual's entire genetical make-up
  D) physiological traits of individual
  Show Answer
  The correct answer is B .
• Question 145: The most important adaptation of xerophytes is the ability of the protoplasm to Options:
  A) resist being damaged by loss of water
  B) store sugar and minerals in the vacuoles
  C) absorbs water and swell
  D) shrink from the cell wall
  Show Answer
  The correct answer is A .
• Question 146:

  A group of organism of different species living in a particular area is described as a

  Options:
  A) colony
  B) community
  C) population
  D) niche
  Show Answer
  The correct answer is B .
• Question 147: A major adaptive feature of endoparasites is the Options:
  A) loss of the organ of movement
  B) presence of claws
  C) loss of the central nervous system
  D) presence of piercing mouthparts
  Show Answer
  The correct answer is D .
• Question 148: Soil fertility can be conserved and renewed by Options:
  A) yearly monocropping
  B) crop rotation and cover crops
  C) bush burning to remove unwanted debris
  D) avoiding artificial manures
  Show Answer
  The correct answer is B .
• Question 149:

  Which of the following statements is true regarding sex-linked traits?

  Options:
  A) Sex-linked traits are located on the sex chromosomes
  B) Sex-linked traits are inherited only from the mother
  C) Sex-linked traits are more commonly observed in females
  D) Sex-linked traits are not influenced by hormonal factors
  Show Answer
  The correct answer is A .
• Question 150:

  Use the list of biomes below to answer the question below

  1. Desert 2. Rain forest 3. Southern Guinea savannah 4. Northern Guinea savannah

  A biome with a low annual rainfall, few scattered trees within dense layer of grasses and found in Kano and Katsina States

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .