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 561: Alternation of generation is a feature shown in Options:
  A) mosses
  B) fungi
  C) grasses
  D) conifers
  Show Answer
  The correct answer is A .
• Question 562: Which of the following groups of diseases are associated with water? I Onchocerciasis II Schistosomiasis III Dracunculiasis IV Elephantiasis V Taeniasis Options:
  A) I, II and III
  B) II, IV and V
  C) II, III and IV
  D) I, II and V
  Show Answer
  The correct answer is A .
• Question 563: If a DNA strand has a base sequence TCA, its complementary strand must be Options:
  A) ATG
  B) TAG
  C) GAT
  D) AGT
  Show Answer
  The correct answer is D .
• Question 564: The chitin in the exoskeleton of many arthropods is strengthened by Options:
  A) lids
  B) proteins
  C) calcium compounds
  D) organic salt
  Show Answer
  The correct answer is C .
• Question 565:

  In the mammalian respiratory system. exchange of gases occurs in the?

  Options:
  A) lungs
  B) bronchi
  C) bronchioles
  D) alveoli
  Show Answer
  The correct answer is D .
• Question 566: The mammalian organ through which nourishment and oxygen diffuse into a developing embryo is called Options:
  A) Amnion
  B) Chorion
  C) Umbilical cord
  D) Oviduct
  E) Placenta
  Show Answer
  The correct answer is E .
• Question 567: In mammalian males, the excretory and reproductive systems share the Options:
  A) Ureter
  B) vas deferens
  C) Urethra
  D) Testes
  Show Answer
  The correct answer is C .
• Question 568: A test tube containing yeast in glucose solution containing alkaline pyrogallol. The bubbles of carbon (IV) oxide produced indicates that the yeast cells are Options:
  A) respiring in the absence of oxygen
  B) liberating oxygen on their own
  C) living and consuming oxygen
  D) being killed by the alcohol produced
  Show Answer
  The correct answer is A .
• Question 569: Which of the following represents the sequence of protein hydrolysis? 1. polypeptides 2. Amino acides 3. Proteins 4. Peptones Options:
  A) 3 → 1 → 2 → 4
  B) 3 → 2 →4 → 1
  C) 3 → 1 →2 → 4
  D) 3 → 4 → 1 → 2
  E) 3 → 1 → 4 → 2
  Show Answer
  The correct answer is D .
• Question 570: The group of insects that have mouth parts adapted for both piercing and sucking is Options:
  A) cockroach, aphids and mosquitoes
  B) aphids, houseflies and moths
  C) mosquitoes, tse-tse flies and aphids
  D) aphids, beetles and grasshoppers
  Show Answer
  The correct answer is C .