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 1631: In blood transfusion, agglutination occurs when Options:
  A) white blood cells from two individuals meet
  B) two different antibodies meet
  C) two different antigens meet
  D) contrasting antigens and antibodies meet
  Show Answer
  The correct answer is D .
• Question 1632: What part of the central nervous system is concerned with answering an examination question Options:
  A) Cerebrum
  B) Cerebellum
  C) Medulla oblongata
  D) Spinal cord
  Show Answer
  The correct answer is A .
• Question 1633: Which of the following possesses mammary gland? Options:
  A) Dogfish
  B) whale
  C) shark
  D) catfish
  Show Answer
  The correct answer is B .
• Question 1634: All living cells require water because it Options:
  A) is a medium for all metabolic reactions
  B) is a medium that neutralizes the acids in cells
  C) is the main source of energy for the cell
  D) prevents the development of dieseases in cells
  Show Answer
  The correct answer is A .
• Question 1635: A spirogyra cell placed was placed in solution X after 1 minute the cell has been plasmolysed, solution X was Options:
  A) Tap water
  B) a very strong sugar solution
  C) a weak sugar solution
  D) a very weak salt solution
  E) distilled water
  Show Answer
  The correct answer is B .
• Question 1636: The mammalian endocrine system is responsible for Options:
  A) transmitting impulse
  B) regulating body temperature
  C) regulating osmotic pressure of blood
  D) chemical co-ordination
  E) the manufacture of blood
  Show Answer
  The correct answer is D .
• Question 1637: The following events take place during conjugation in spirogyra 1. The protoplasm of each of the conjugating cell separate from the cell wall to form a Gamete; the gamete of one filament passes through the conjugation tube to meet the gamete of the other filament 2. The zygote soon become surrounded by thick brown wall to become zygospore which burst after a short rest and germinate to produce a new filament 3. The nuclei of the gametes fuse to form a zygote 4. The protuberance meet and where they touch the cell-wall disappear so that a conjugation tube joining the two cell is formed 5. protuberance appear on the wall of the cell of two filament of spirogyra lying side by side opposite one another. Now what is the correct sequence in which the above sequence occur? Options:
  A) 1,2,3,4,5
  B) 1,2,4,5,3
  C) 3,4,5,2,1
  D) 5,4,1,3,2
  E) 5,4,3,1,2
  Show Answer
  The correct answer is D .
• Question 1638:

  When bacteria swim from cold to warm regions, this is known as

  Options:
  A) positive phototaxis
  B) negative phototaxis
  C) positive thermotaxis
  D) negative chemotaxis
  Show Answer
  The correct answer is C .
• Question 1639:

  

  Blood is pumped into the right ventricle by the contraction of the auricle wall through

  Options:
  A) 1
  B) 3
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1640: In the mammal, the autonomic nervous system consists of Options:
  A) sympathetic and parasympathetic system
  B) brain and spinal nerves
  C) brain and cranial nerves
  D) spinal cord and spinal nerves
  Show Answer
  The correct answer is A .