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 251: Wind pollinated flowers usually have Options:
  A) rough pollen grains
  B) sticky stigmas
  C) small and short stigmas
  D) long styles
  Show Answer
  The correct answer is D .
• Question 252: The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with Options:
  A) denitrifying bacteria
  B) Saprophytic bacteria
  C) Rhizobium
  D) Nitrosomonas
  Show Answer
  The correct answer is C .
• Question 253: An indigenous method of renewing and maintaining soil fertility is by Options:
  A) clearing farms by burning
  B) planting one crop type
  C) adding inorganic fertilizers yearly
  D) crop rotation and shifting cultivation
  Show Answer
  The correct answer is D .
• Question 254: The three important organs that are situated close to the stomach are Options:
  A) Kidney, liver and gall bladder
  B) pancreas, liver and kidney
  C) liver, kidney and spleen
  D) gall bladder, pancreas and spleen
  Show Answer
  The correct answer is D .
• Question 255:

  Which of the following is most advanced in the evolutionary trend of animals?

  Options:
  A) Liverfluke
  B) Earthworm
  C) Snail
  D) Cockroach
  Show Answer
  The correct answer is D .
• Question 256:

  Which of the following organs can be considered vestigial in humans but functional in other mammals

  Options:
  A) The liver
  B) Appendix
  C) Rectum
  D) Stomach
  Show Answer
  The correct answer is B .
• Question 257:

  

  The organism is found in soils rich in

  Options:
  A) mud
  B) humus
  C) clay
  D) sand
  Show Answer
  The correct answer is B .
• Question 258:

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

  Options:
  A) 1/2
  B) 1/4
  C) 1
  D) 3/4
  Show Answer
  The correct answer is A .
• Question 259: 2H₂ → 2H₂ + O_2(g). The equation above represents a part of the light stage of photosynthesis. Which of the following must be presents for this reaction to occur? Options:
  A) Enzyme and light energy
  B) Carbondioxide and light energy
  C) Light energy and cholorphyll
  D) Chlorophyll and enzyme
  Show Answer
  The correct answer is C .
• Question 260: which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing? Options:
  A) Medulla
  B) Cerebrum
  C) Cerebellum
  D) Pineal body
  E) Olfactory lobe
  Show Answer
  The correct answer is A .