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TNPSC Biology MCQ Questions and Answers

General Science
1. The maximum number of trophic levels found in a food chain is
 
  • A. One
  • B. Four
  • C. Six
  • D. Ten
Answer: B.
Four
 
2. Which of the following is an insecticide?
 
  • A. Streptomycin
  • B. Copper or chloride
  • C. Thallium sulfate
  • D. Malathion
Answer: D.
Malathion
 
 
3. Henle’s loop is found in
 
  • A. Atrium
  • B. Ureter
  • C. Urini ferrous tubule
  • D. Malphigian capsule
Answer: C.
Urini ferrous tubule
 
4. In Chlamydomonas the cell wall is made up of?
 
  • A. Pectin
  • B. Suberin
  • C. Cellulose
  • D. Peptides
Answer: C.
Cellulose