Insects are not harmful always, they are beneficial also. There are several insect varieties which are beneficial to mankind. These varieties are classified as productive insects and helpful insects. Productive insects are those substances of commercial use and helpful insects are those who serve humanity. Certain varieties of insect supply us useful things as honey, bee wax, bees venom, royal jelly, silk, lace, etc. Helpful insects help as insect pollinators, destroyers of weed plants, biological control, soil fertility, etc. So take this quiz and about another face of an insect as a beneficial insect.
1. Which developing stage of silkworm produces silk?
A. Egg
B. Pupa
C. Larva
D. Imago
2. Common to Silk, lac, and honey is that these are.....
A. Plant secretion
B. Products of insects
C. Chemical secreted by only social insects
D. Synthetic compounds
3. Best quality Silk is obtained from...
A. Bombyx Mori
B. Antherae assama
C. Attacus ricini
D. Apis dorsata
4. Which part of the silkworm produces silk?
A. Spineret
B. Legs
C. Saliva
D. All of these
5. Bees venom is used to cure...
A. Rheumatism
B. Kala azar
C. Surra disease
D. Oriental sore
6. Which insect product has anti-cancerous properties?
A. Bees venom
B. Lac
C. Beeswax
D. Royal jelly
7. Commercial lac is...
A. Scales of Bony fish
B. Fins of cartilagenous fish
C. Exuviate of type of insect
D. Root of plant type
8. Most of the economically important species belong to the class of.....
A. Myriapoda
B. Crustacea
C. Palecypoda
D. Insecta
9. Pollination done by an insect is...
A. Anemophily
B. Zoophily
C. Entomophily
D. Insectophily
10. Lac is obtained from...
A. Plants
B. Insects
C. Synthetic processes
D. By product of bee industry
11. Which day is produced by insect Dactylopius coccus?
A. Haematoxylin
B. Safranin
C. Eosin
D. Acetocarmine
12. One cocoon yields around ...... Meters of silk thread.
A. 100 to 200
B. 200 to 300
C. 300 to 500
D. 550 to 600
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