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 581: If an isolated living cell is left in distilled water for two hours, it is likely to Options:
  A) lose some of its water to the surrounding water
  B) lose all of its water to the surrounding water
  C) reproduce by binary fission
  D) become more turgid
  E) die due to excess water
  Show Answer
  The correct answer is D .
• Question 582:

  Which of the blood corpusles are irregular and amoeloid in shape

  Options:
  A) Leucocytes
  B) Erythrocytes
  C) Thrombocytes
  D) Plasma
  Show Answer
  The correct answer is A .
• Question 583: Identify which of the following are characteristics of the vertebrate respiratory surface 1. Moist 2. Vascularized 3. Semipermeable 4. Freely permeable 5. Dry Options:
  A) 1, 2, 3
  B) 1, 2, 5
  C) 2, 3, 5
  D) 2, 4, 5
  E) 1, 3, 5
  Show Answer
  The correct answer is A .
• Question 584: Which of the following has the most primitive respiratory system? Options:
  A) snail
  B) fish
  C) insect
  D) mouse
  Show Answer
  The correct answer is A .
• Question 585: Which of the following instruments is used to demonstrate the response of roots and shoots to gravity? Options:
  A) Klinostat
  B) Manometer
  C) Porometer
  D) Potometer
  E) Photometer
  Show Answer
  The correct answer is A .
• Question 586: Which is the most important pollutant of the marine environment in Nigeria? Options:
  A) Insecticides
  B) Sewage
  C) Oil
  D) Inorganic fertilizers
  Show Answer
  The correct answer is C .
• Question 587: Which of the following represents the sequence of protein hydrolysis? 1. polypeptides 2. Amino acides 3. Proteins 4. Peptones Options:
  A) 3 → 1 → 2 → 4
  B) 3 → 2 →4 → 1
  C) 3 → 1 →2 → 4
  D) 3 → 4 → 1 → 2
  E) 3 → 1 → 4 → 2
  Show Answer
  The correct answer is D .
• Question 588:

  The natural place of an organism or community is known as

  Options:
  A) Niche
  B) Habit
  C) Biome
  D) Habitat
  Show Answer
  The correct answer is D .
• Question 589:

  The growth of mucor on a piece of bread is?

  Options:
  A) scavenging
  B) commensalism
  C) autotrophism
  D) saprophytism
  Show Answer
  The correct answer is D .
• Question 590: The blood component that has the greatest affinity for oxygen is the Options:
  A) lymphocytes
  B) leucocytes
  C) erythrocytes
  D) thrombocytes
  Show Answer
  The correct answer is C .