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Pesticides: O Level Biology MCQs Quiz Online Tests pdf Download

Practice MCQs on pesticides: o level biology, biology MCQs for online test prep. Effects of human activity on ecosystem quiz has multiple choice questions (MCQ), pesticides: o level biology quiz questions and answers as if a substance accumulates in a body for a long time, it will be, answer key with choices as passed out through egestion, passed out through excretion, become insoluble in water and passed on to next consumer in food chain for competitive exam prep. Free study guide is to learn pesticides: o level biology quiz online with MCQs to practice test questions with answers.

MCQs on Pesticides: O Level Biology Quiz pdf Download

MCQ. If a substance accumulates in a body for a long time, it will be

  1. passed out through egestion
  2. passed out through excretion
  3. become insoluble in water
  4. passed on to next consumer in food chain

D

MCQ. Presence of tubifax worms indicate that

  1. parasites are found in intestine
  2. cellulose in grass can easily be digested by pri-consumers
  3. water is highly polluted
  4. BOD is very low

C

MCQ. Pests may be not be destroyed through

  1. Parasites
  2. Insecticides
  3. herbicides
  4. pesticides

A

MCQ. Bacteria can

  1. not grow in fertilized soil
  2. not degrade DDT
  3. degrade DDT into simpler substances
  4. digest white blood cells

B

MCQ. Substances which can remain in soil for many years are called as

  1. microorganisms
  2. insecticides
  3. dichloro-triphenyl dichloroethane
  4. dichloro-diphenyl tricholoroethane

D