WAEC Biology 1996 Question 34

Question 34

Soil

Which of the following is the correct method of collecting soil organism?

  1. A.Heating the soil sample in an oven
  2. B.Aerating the soil sample
  3. C.Refrigerating the soil for some hours
  4. D.Pouring hot water on the soil to enable the organism float
  5. E.Placing a lighted electric bulb over soil in a funnel
Show the answer and explanation

Answer: E (Placing a lighted electric bulb over soil in a funnel)

Explanation

In a Tullgren funnel the bulb's heat and light drive small organisms down through a sieve into a collecting jar.