Read the given paragraph carefully.
The female silk (i) lays eggs. When an egg hatches, a tiny caterpillar called silkworm or (ii) crawls out. It feeds on leaves and grows. When it is ready to enter the next stage in its life cycle, it secretes a fibre made of (iii) , which hardens on exposure to air. This is the silk fibre. It covers itself completely with this fibre, to form a (iv) . At this stage, the larva is called a (v) , which grows and changes inside the covering and, a few weeks later comes out as an adult.
Select the correct sequence of words to complete the above paragraph.
A hoverfly looks like a honey bee (see the figures). Which of the following statements best explains how this adaptation helps the hoverfly to survive ?
ALooking like a honey bee keeps other animals away from the hoverfly's food.
BLooking like a honey bee allows the hoverfly to collect more pollen.
CLooking like a honey bee allows the hoverfly to blend with its environment.
DLooking like a honey bee prevents some predators from trying to eat the hoverfly.
The given group of items : milk, cottage cheese and eggs are tested for their nutrient content with the help of ____.
DCombination of both A & B
What is determined by copper sulphate and sodium hydroxide and how?