Which adaptation is seen in the leaf insect?

Related Mcqs:

1. Peacock eats a snake and snake eats frog and frog eats insect while insect eats green plant, then position of peacock is:

   A. Primary producer
   B. Secondary Producer
   C. Decomposer
   D. Apex of food pyramids

2. Useful adaptation of hydrophytes is:

   A. Large leaves
   B. Decrease in mechanical tissue
   C. Large mechanical tissue
   D. Increase in aerenchyma

3. As an adaptation to fire, some plants produce lignotubres which are:

   A. Borne on the leaves
   B. Borne underground
   C. Present on the main stem
   D. Suspended from the branches

4. The West Pakistan (Adaptation of Law) Ordinance ______.

   A. 1958
   B. 1959
   C. 1960
   D. 1961

5. The temperate broad-leaf forest biomes are characterized by the predominance of

   A. Cupressus sp.
   B. Dalbergia sp.
   C. Diospyros sp.
   D. Quercus sp.

6. Leaf curling is caused by:

   A. SO2
   B. O2
   C. H2S
   D. CO

7. Dominant tree: Including all trees which form the upper most leaf canopy and have their leading shoots free. These are usually sub-divided into:

   A. Predominant trees comprising all the largest trees which determine the general top level of the canopy
   B. Codominant trees which fall short of this, averaging about 5/6th of the height of predominant
   C. Trees with forked leader and similar defects
   D. All of the above

8. One of the major difficulties in the biological control of insect pests is that:

   A. The predator develops a preference to other diets and may itself become a pest
   B. They do not always survive when transferred to a new environment
   C. The method is less effective as compared to the use of insecticides
   D. The practical difficulty in introducing the predator to specific area

9. The photochemical smog was first seen in the year:

   A. 1933
   B. 1943
   C. 1953
   D. 1963

10. Erosion of very fine particles is seen on account of:

    A. Saltation
    B. Suspension
    C. Surface creep
    D. Shifting of dunes