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 771: A characteristic of vertebrates that is unique to mammals is Options:
  A) the presence of pentadctyl limbs
  B) parental care
  C) the possession of scrotum
  D) pulmonary circulation
  Show Answer
  The correct answer is C .
• Question 772: If the offspring of a cross between a brown mouse (bb) and a black mouse (BB) are allowed to interbreed, how many different genotypes would result? Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is C .
• Question 773: The crayfish is an arthropod because Options:
  A) its body consist of a cephalothorax and an abdomen
  B) it has a pair each of antennae and antennules
  C) every segment of its body carries a pair of appendages
  D) its body is covered with an exoskeleton made of chitin
  Show Answer
  The correct answer is D .
• Question 774: ‘Jointed skeleton’ is absent in the Options:
  A) Cockroach
  B) Spider
  C) Millipede
  D) Snail
  E) Dragon fly
  Show Answer
  The correct answer is D .
• Question 775: The sequence of the biomes in Nigeria from port Harcourt to Damaturu is Options:
  A) estuarine → rain forest → Guinea Savannah → Sahel Savannah
  B) rain forest → Guinea savannah → estuarine → desert
  C) estuarine → Guinea savannah → rain forest → Sahel savannah
  D) rain forest → estuarine → Guinea savannah → desert
  Show Answer
  The correct answer is A .
• Question 776: Water is required for seed germination to take place because it Options:
  A) activates the enzymes
  B) softens the testa
  C) liberates energy for growth
  D) permits radicle growth
  E) allow oxygen to diffuse into the seed
  Show Answer
  The correct answer is A .
• Question 777:

  

  The beak structure of the organism is best adapted for?

  Options:
  A) pecking grass
  B) killing and picking fish
  C) pecking woods
  D) sucking nectars
  Show Answer
  The correct answer is D .
• Question 778: Growth can best be determined in a population of Spirogyra by measuring the Options:
  A) total length of the filament
  B) total widths of the filaments
  C) rate of photosynthesis in the population
  D) dry weights of the organism
  Show Answer
  The correct answer is A .
• Question 779:

  

  Use the diagram above to answer this question.

  Oxygenated blood is pumped to the entire body from the part labelled

  Options:
  A) IV
  B) lll
  C) ll
  D) l
  Show Answer
  The correct answer is A .
• Question 780:

  

  The function of the part labelled V is for the passage of

  Options:
  A) pollen tube and pollen nucleus
  B) air, water and pollen nucleus
  C) air, antipodal cells and ovum
  D) synergids and egg cell
  Show Answer
  The correct answer is A .