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 221: The part that supplies food from the mother to the foetus is Options:
  A) Amnion
  B) Chorion
  C) Umbilical Cord
  D) Placenta
  Show Answer
  The correct answer is D .
• Question 222:

  In monohybrid inheritance, if an organism carries two different alleles for a particular gene, it is called:

  Options:
  A) Homozygous
  B) Dominant
  C) Heterozygous
  D) Recessive
  Show Answer
  The correct answer is C .
• Question 223: A samara differs from a cypsela by having Options:
  A) an extended pericarp
  B) a hard pericarp
  C) a pericarp fused with seed coat
  D) some hairy outgrowth on the pericarp
  Show Answer
  The correct answer is A .
• Question 224: The part of the mammalian skin involved in excretion is the Options:
  A) sweat glands
  B) malpighian layer
  C) sebaceous gland
  D) horny layer
  Show Answer
  The correct answer is A .
• Question 225: Which of the following is likely to encourage inbreeding in plants? Options:
  A) Dioecious
  B) Protandrous
  C) Monoecious
  D) Hermaphrodite
  Show Answer
  The correct answer is C .
• Question 226:

  Which of the following cycles involves the process of precipitation and transpiration?

  Options:
  A) water cycle
  B) carbon cycle
  C) nitrogen cycle
  D) oxygen cycle
  Show Answer
  The correct answer is A .
• Question 227: Which of the following instruments is used to measure relative humidity? Options:
  A) Hydrometer
  B) Thermometer
  C) Hygrometer
  D) Anemometer
  Show Answer
  The correct answer is C .
• Question 228: The parts of the mammalian eye that strongly bend light rays are the Options:
  A) cornea and the lens
  B) cornea and aqueous humour
  C) cornea and vitreous humour
  D) lens and aqueous humour
  E) lens and vitreous humour
  Show Answer
  The correct answer is E .
• Question 229: Radial symmetry is a future common to Options:
  A) platyhelminthes
  B) nematodes
  C) coelenterates
  D) arthropods
  Show Answer
  The correct answer is C .
• Question 230:

  

  Which of the plants is likely to have broad leaves and thin cuticle

  Options:
  A) R
  B) S
  C) T
  D) U
  Show Answer
  The correct answer is A .