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 2231: An example of plant adaptation to a xerophytic environment is represented by the development of Options:
  A) fleshy tissue and reduced leaves
  B) broad canopy and extensive surface root system
  C) thick barks and broad leaves
  D) rough leaves and shallow root system
  Show Answer
  The correct answer is A .
• Question 2232: Two organisms of different species, living in close association but not dependent on each other are referred to as Options:
  A) parasites
  B) commensals
  C) symbionts
  D) autotrophs
  Show Answer
  The correct answer is D .
• Question 2233:

  Which of the following plant tissues is responsible for transporting water and nutrients from the roots to the rest of the plant?

  Options:
  A) Mesophyll
  B) Xylem
  C) Epidermis
  D) Phloem
  Show Answer
  The correct answer is B .
• Question 2234: The blood circulatory system of vertebrates consists of Options:
  A) heart, arteries, capillaries and veins
  B) heart, aorta, capillaries and veins
  C) heart, aorta, arteries and veins
  D) heart, vena cava, arteries, and veins
  Show Answer
  The correct answer is A .
• Question 2235: Each of the following is an anthropod EXCEPT the Options:
  A) crab
  B) spider
  C) snail
  D) milipede
  E) cockroach
  Show Answer
  The correct answer is C .
• Question 2236:

  

  The gland usually found in the position labelled I is the

  Options:
  A) adrenal
  B) thyriod
  C) pancreatic
  D) pituitary
  Show Answer
  The correct answer is D .
• Question 2237: In eukaryotic cells,cellular respiration takes place in the Options:
  A) nucleus
  B) cytoplasm
  C) centrioles
  D) mitochondrion
  Show Answer
  The correct answer is D .
• Question 2238: The causative agent of typhoid fever is Options:
  A) salmonella
  B) entamoeba
  C) escherichia
  D) shigella
  Show Answer
  The correct answer is A .
• Question 2239: Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because, they have Options:
  A) a large volume of surface area ratio
  B) a large surface area to volume ratio
  C) their bodies immersed in the nutrients
  D) their outer membrane made of cellulose
  Show Answer
  The correct answer is B .
• Question 2240: What would happen to a man whose pancreas has been surgically removed? Options:
  A) The level of blood sugar would increase
  B) The glycogen content of the liver would increase
  C) His blood pressure would decrease
  D) His weight would increase appreciably
  Show Answer
  The correct answer is A .