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 361:

  What is the critical limiting factor for plants below the photic zone in an aquatic ecosystem?

  Options:
  A) availability of nutrients
  B) availability of water
  C) intensity of light
  D) carbon dioxide concentration
  Show Answer
  The correct answer is C .
• Question 362:

  The noticeable adaptation of the animal to it's aquatic habitat is the possession of

  Options:
  A) webbed digits
  B) four limb
  C) wide mouth
  D) large eyes
  Show Answer
  The correct answer is A .
• Question 363: If a ring of bark and phloem is removed from a stem, the Options:
  A) plant dies immediately
  B) plant dies after two days
  C) movement of food is not affected
  D) movement of minerals is hardly affected
  Show Answer
  The correct answer is D .
• Question 364: The insects in which the maxillae are modified into a long coiled proboscis is Options:
  A) housefly
  B) butterfly
  C) mosquito
  D) grasshopper
  Show Answer
  The correct answer is B .
• Question 365: If a child can receive blood from all donors , he belongs to the blood group Options:
  A) O
  B) A
  C) B
  D) AB
  E) AS
  Show Answer
  The correct answer is D .
• Question 366: Nitrogen- fixing micro-organisms in leguminous plants live symbiotically in the Options:
  A) root nodules
  B) tap root
  C) branch roots
  D) root hairs
  Show Answer
  The correct answer is A .
• Question 367: the function of lenticels is Options:
  A) to remove excess water in plant
  B) to absorb water from the atmosphere
  C) for gaseous exchange
  D) to absorb light
  E) to store food
  Show Answer
  The correct answer is C .
• Question 368: During mammalian embryo development, large amounts of oestrogen and progesterone are produced in the Options:
  A) umbilical cord
  B) amnion
  C) placenta
  D) amniotic fluid
  Show Answer
  The correct answer is C .
• Question 369: The vector of the malaria parasite is the Options:
  A) female anopheles mosquito
  B) female culex mosquito
  C) male anopheles mosquito
  D) male culex mosquito
  Show Answer
  The correct answer is A .
• Question 370: The functional unit of a mammalian kidney is the Options:
  A) urethra
  B) malphigian capsule
  C) glomerulus
  D) nephron
  E) ureter
  Show Answer
  The correct answer is D .