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 1551: Habitats are generally classified into Options:
  A) biotic and abiotic
  B) aquatic and terrestrial
  C) aboreal and marine biomes
  D) microhabitats and macrohabitats
  Show Answer
  The correct answer is B .
• Question 1552: Which of the following organs regulates the levels of water, salts , hydrogen ions and urea in the mammalian blood? Options:
  A) Liver
  B) Kidney
  C) Bladder
  D) Colon
  Show Answer
  The correct answer is B .
• Question 1553: The most recently evolved structure in animals is the Options:
  A) hair
  B) cilium
  C) scale
  D) feather
  Show Answer
  The correct answer is A .
• Question 1554: Which of the following requires the use of carbon dating to prove that evolution has occurred? Options:
  A) Comparative anatomy
  B) Biochemical similarities
  C) molecular records
  D) Fossil records
  Show Answer
  The correct answer is D .
• Question 1555: The mammalian stomach can carry out a number of processes except Options:
  A) absorption of glucose
  B) secretion of hydrochloric acid
  C) secretion gastric juice
  D) churning of food
  E) production of trypsin
  Show Answer
  The correct answer is E .
• Question 1556: The region that control most of the unconscious processes of a mammalian body is the Options:
  A) cerebellum
  B) cerebrum
  C) spinal cord
  D) medulla oblongata
  Show Answer
  The correct answer is C .
• Question 1557:

  Given the equation:

  6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ {Under sunlight & Chlorophyll)

  The oxygen given off during the above process is derived from

  Options:
  A) sunlight
  B) chlorophyll
  C) carbon dioxide
  D) atmosphere
  E) water
  Show Answer
  The correct answer is E .
• Question 1558: The colour of the ventral surface of a fish is lighter than that of the dorsal. This is mainly Options:
  A) an adaptation for movement
  B) an adaptation for camouflage
  C) for attracting mates
  D) for regulating body temperature
  Show Answer
  The correct answer is B .
• Question 1559:

  If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is

  Options:
  A) $\frac{1}{2}$
  B) $\frac{3}{4}$
  C) $\frac{1}{4}$
  D) $1$
  Show Answer
  The correct answer is C .
• Question 1560: In animals, cilia, flagella, pseudopodia and chaetae, can be used for Options:
  A) reproduction
  B) fighting
  C) attachment to plants
  D) locomotion
  E) locating sensation
  Show Answer
  The correct answer is D .