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 311: The blood vessel which carries digested food from the small intestine to the liver is the Options:
  A) Renal vain
  B) Renal artery
  C) Hepatic artery
  D) Hepatic portal vein
  E) Coelic artery
  Show Answer
  The correct answer is D .
• Question 312:

  Which of the following statements is true regarding sex-linked traits?

  Options:
  A) Sex-linked traits are located on the sex chromosomes
  B) Sex-linked traits are inherited only from the mother
  C) Sex-linked traits are more commonly observed in females
  D) Sex-linked traits are not influenced by hormonal factors
  Show Answer
  The correct answer is A .
• Question 313:

  

  The structure labelled 1 is the

  Options:
  A) plumule
  B) radicle
  C) cell membrane
  D) seed coat
  Show Answer
  The correct answer is D .
• Question 314: The mouth parts of the housefly are adapted for Options:
  A) Lapping and sponging
  B) Sucking and chewing
  C) Piercing and sucking
  D) Chewing and lapping
  E) Biting and chewing
  Show Answer
  The correct answer is A .
• Question 315:

  Blood circulation in a mammal is said to be double because?

  Options:
  A) it passes twice through the heart in a complete circuit
  B) it moves in both arteries and veins
  C) it circulates in both the heart and other organs
  D) the heart contains auricles and ventricles
  Show Answer
  The correct answer is A .
• Question 316: Strong short and concical beak to pick and crush seeds is an adaptive feature of Options:
  A) duck
  B) owl
  C) weaver bird
  D) hawk
  Show Answer
  The correct answer is C .
• Question 317: From which group of animals are the mammals generally believed to have most recently evolved? Options:
  A) Reptiles
  B) Fish
  C) Amphibians
  D) Birds
  Show Answer
  The correct answer is C .
• Question 318:

  The following processes are involved during expiration in man except

  Options:
  A) The inter costal muscles relax
  B) The thoracic activity first increases in volume
  C) The sternum moves inward
  D) The ribs are moved downwards and inwards
  Show Answer
  The correct answer is B .
• Question 319: The sex-linked defect in which very slight cut produces severe bleeding is known as Options:
  A) anaesmia
  B) anorexia
  C) haemophilia
  D) haemolysis
  Show Answer
  The correct answer is C .
• Question 320: The main structure in vertebrates that supports and protects the body is the Options:
  A) skeleton
  B) ligament
  C) muscle
  D) joint
  Show Answer
  The correct answer is A .