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 1241: Which of the following helps in the clotting of blood? Options:
  A) Red blood cells
  B) White blood cells
  C) Plasma
  D) Platelets
  Show Answer
  The correct answer is D .
• Question 1242: Urea formation occurs in the Options:
  A) heart
  B) liver
  C) lung
  D) kidney
  Show Answer
  The correct answer is B .
• Question 1243: The mammalian organ which acts both as a digestive and as an endocrine organ is the Options:
  A) oesophagus
  B) liver
  C) pancreas
  D) spleen
  Show Answer
  The correct answer is C .
• Question 1244: The organ which is sensitive to light in Euglena is the Options:
  A) gullet
  B) flagellum
  C) chloroplast
  D) eyespot
  Show Answer
  The correct answer is D .
• Question 1245: The short thick break in birds is an adaptation for Options:
  A) crushing seeds
  B) sucking nectar
  C) tearing flash
  D) straining mud
  Show Answer
  The correct answer is A .
• Question 1246: When a virus is placed in a nonliving medium it Options:
  A) becomes dehydrated
  B) forms spores
  C) forms flagella
  D) becomes crystallized
  Show Answer
  The correct answer is D .
• Question 1247: The excessive use of agro-chemicals could lead to the pollution of Options:
  A) the lithosphere
  B) the atmosphere
  C) fresh water
  D) space
  Show Answer
  The correct answer is C .
• Question 1248: Fossil records found in sedimentary rocks offer some explanation for the theory of evolution because Options:
  A) the deposits have remains of organisms characteristic of when they were formed
  B) different strata have remains of organisms of the same kind
  C) only organisms with strong parts are fossilized
  D) most animal and plant fossils bear little resemblance to present day living specimens
  Show Answer
  The correct answer is A .
• Question 1249: The process by which lime is added to clay soil is known as Options:
  A) sedimentation
  B) flocculation
  C) leaching
  D) manuring
  Show Answer
  The correct answer is B .
• Question 1250: In a plant exhibiting alternation of generations, the diploid multicellular stage is known as Options:
  A) gametophyte
  B) spermatophyte
  C) holophyte
  D) sporophyte
  Show Answer
  The correct answer is D .