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 2091: Which of the following correctly summarizes the life cycle of fern plant? Options:
  A) Spore → prothallus → thallus → sporangium
  B) Male and female gamentangia → zygospores → sporangium → spores
  C) Spore → thallus → spermatozoa + ovum → sporangium
  D) Prothallus → spermatozoid → +egg cell → leafy plant → sporangium → spore
  Show Answer
  The correct answer is D .
• Question 2092: Example of a fish that aestivates is Options:
  A) shark
  B) croaker
  C) lung fish
  D) cat fish
  Show Answer
  The correct answer is C .
• Question 2093: The opening of the stoma is controlled by the Options:
  A) presence of a pore
  B) increase in solute concentration in the guard cells
  C) presence of guard cells
  D) decrease in solute concentration in the guard cells
  Show Answer
  The correct answer is B .
• Question 2094: In which of these association is much harm done to one of the partners? Options:
  A) Symbiosis
  B) Epiphytism
  C) Commensalism
  D) Parasitism
  E) Mutualism
  Show Answer
  The correct answer is D .
• Question 2095: 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 2096: The most important ecological factor in a terrestrial environment is Options:
  A) rainfall
  B) humidity
  C) wind
  D) soil
  Show Answer
  The correct answer is D .
• Question 2097: If a nursing mother is not producing enough milk, her hormonal system is probably deficient in Options:
  A) prolactin
  B) testosterone
  C) thyroxin
  D) insulin
  Show Answer
  The correct answer is A .
• Question 2098: The interaction of a community of organisms with its abiotic environment constitutes Options:
  A) niche
  B) a food chain
  C) an ecosystem
  D) a mirohabitat
  Show Answer
  The correct answer is C .
• Question 2099: The vein which returns blood from the head and arms to the heart is called Options:
  A) aorta
  B) inferior vena cava
  C) superior vena cava
  D) pulmonary vein
  E) pulmonary artery
  Show Answer
  The correct answer is C .
• Question 2100: Which of the following is used mainly for balancing in fish? Options:
  A) the caudal fin
  B) the pectoral fin
  C) the anal fin
  D) the dorsal fin
  Show Answer
  The correct answer is D .