Distance = 20 km Speed of A = 4 km per hour Speed of B = 2 km per hour Speed of C = 10 km per hour Time = Distance/speed Time taken by A = 20/4 hours = 5 hours Time taken by B = 20/2 hours = 10 hours Time taken by C = 20/10 hours = 2 hours The required time = LCM of 5, 10, 2 = 10 ∴ All three will meet again at starting point after 10 hours
The silk fibres are held together in cocoon by a substance known as
Insects are classified into the phylum_______.
Which of the following are the characteristic features of an Insect?
A bacterial disease of silkworm turns the color of larva to black and emits the foul smell. Name of the disease is:
Pebrine disease of silkworm is caused by
Host tree species for Muga silkworm is ________
Larvae of _____________ causes damage in redgram by webbing together flowers, pods and leaves with frass often on pods and shoot tips.
Which of the following is not matched correctly?
This Chemical known as “Apple Factor” which is released by Malus sp. and acts as an attractant to Aphis pomi is:
Which one of the following hormones sclerotizes the newly formed cuticle?
