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 291: The earliest form of life in animal kingdom is the Options:
  A) class
  B) amphibian
  C) aves pisces
  D) reptilia
  Show Answer
  The correct answer is C .
• Question 292: The movement of blood between the heart and all other parts of the body besides the lung is known as Options:
  A) systemic circulation
  B) closed circulatory system
  C) pulmonary circulation
  D) single circulation system
  Show Answer
  The correct answer is A .
• Question 293: If the cross of a red-flowered plant with a white-flowered plant produces a pink-flowered plant, it is an example of Options:
  A) codominance
  B) incomplete dominance
  C) mutation
  D) linkage
  Show Answer
  The correct answer is B .
• Question 294: The matured sex cell which takes part in sexual reproduction is referred to as Options:
  A) gamete
  B) fetus
  C) embryo
  D) zygote
  Show Answer
  The correct answer is A .
• Question 295: In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to Options:
  A) prevent alga growth in culture solution
  B) allow root growth
  C) prevent breakdown of mineral elements
  D) prevent photosynthesis in the root
  Show Answer
  The correct answer is A .
• Question 296: The chamber of the mammalian heart with the thickest wall is the Options:
  A) right ventricles
  B) left auricle
  C) right auricle
  D) left ventricle
  Show Answer
  The correct answer is D .
• Question 297: Parenchyma cells are serves as supporting tissue when they Options:
  A) contain chloroplast
  B) have crystals
  C) become flaccid
  D) become turgid
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  The correct answer is D .
• Question 298: The kidneys of all vertebrates act as osmoregulators. This means that they Options:
  A) keep the composition of the plasma constant
  B) regulate osmotic processes
  C) control the volume of blood entering the kidneys
  D) decrease the osmotic pressure of the blood
  E) increase the osmotic pressure of blood
  Show Answer
  The correct answer is B .
• Question 299:
  

  The part that will develop into an organ for feeling is labelled

  Options:
  A) IV
  B) III
  C) II
  D) I
  Show Answer
  The correct answer is D .
• Question 300:

  What is the definition of population ecology?

  Options:
  A) The study of interactions between organisms and their physical environment
  B) The study of evolutionary processes and their effects on populations
  C) The study of interactions between different populations in an ecosystem
  D) The study of the distribution and abundance of individuals within a species
  Show Answer
  The correct answer is D .