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 641: A tapeworm has no alimentary canal because Options:
  A) It is autotrophic
  B) It does not feed
  C) It has no enzymes
  D) Its body absorbs digested food
  E) The suckers on the scolex suck blood
  Show Answer
  The correct answer is D .
• Question 642: Double fertilization is a unique feature of Options:
  A) angiosperms
  B) bryophytes
  C) pteridophytes
  D) algae
  Show Answer
  The correct answer is A .
• Question 643: In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m² quadrat. What is the density of the plants in the field? Options:
  A) 1.2 per m²
  B) 2.4 per m²
  C) 4.8 per m²
  D) 9.6 per m²
  Show Answer
  The correct answer is A .
• Question 644: Which of the following describes a characteristic of arthropods? Options:
  A) The organism finds it easy to grow freely
  B) the organism has a pair of jointed appendages
  C) the body is not divided into a number of segments seg
  D) the body is covered by chitin
  Show Answer
  The correct answer is D .
• Question 645:

  Which of the following traits is not visible in a person with Down syndrome?

  Options:
  A) Short neck
  B) High muscle tone
  C) Small stature
  D) Slant eyes
  Show Answer
  The correct answer is B .
• Question 646:

  In the egg of a bird, the embryo is located in the

  Options:
  A) Chalaza
  B) Yolk
  C) Albumen
  D) Embryo disc
  Show Answer
  The correct answer is B .
• Question 647: In the reproduction of mosses, water is essential because Options:
  A) they live in moist habitats
  B) they cannnot reproduce without water
  C) the male ganetes must swim to fertilize the ovum
  D) they produce spores
  Show Answer
  The correct answer is C .
• Question 648: In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used to Options:
  A) neutralize the acid in water
  B) supply mineral salt to water plant
  C) supply carbondioxide for photosynthesis
  D) kill micro-organisms in water
  Show Answer
  The correct answer is B .
• Question 649: In animals, meiosis comes Options:
  A) after fertilization
  B) after ever mitotic division
  C) before fertilization
  D) before every mitotic division
  Show Answer
  The correct answer is D .
• Question 650:

  The correct pathway for blood flow from the heart to the tissues of mammals is?

  Options:
  A) heart-arteriole-artery-tissues
  B) heart-artery-arteriole-tissues
  C) heart-vein-venule-tissues
  D) heart-venule-vein-tissues
  Show Answer
  The correct answer is B .