Give the economic importance of molluscs.

Mahatma Gandhi had always maintained that the real growth of India lies in the growth of villages. The importance of rural development in India lies in the fact that `2//3^(rd)`...

Economic Growth Economic Development (i) Economic growth refers to an increase in the real N.I. of the country over a long period of time. (i) Economic development means economic growth plus progressive changes in...

Economic Wants Non-economic Wants (i) Economic wants are those wants for which price has to be paid. (i) Non-economic wants are those wants that can be satisfied without paying price. (ii) Eg. a dress,...

Yes, I agree with the statement.  Economic development and economic growth go hand in hand. They are interrelated but they do not mean the same.  Economic growth refers to an increase in...

This statement is True.  1. Stages of economic development in human history are not limited to economic transformation in society.  2. They promoted large scale political and social transformations. Amidst these changes,...

Yes, I do agree with the statement.  When India got independence, it was caught in the vicious circle of poverty.  There were many macroeconomic problems like food scarcity, illiteracy, mass communicable diseases,...

Economic importance of Bryophytes:  1. Some mosses provide food for herbivorous mammals, birds, etc. 2. Species of Sphagnum, a moss; provides peat used as fuel.  3. Mosses are also used as packing material...

1. Cycas is grown as an ornamental plant.  2. Pinus is used as source of pine wood, turpentine oil and pine resin.

Circulatory system: Circulatory system is of open type (except in Sepia, where it is of the closed type). Blood contains a copper-containing blue-coloured respiratory pigment called haemocyanin.

1. (d) Sepia 2. (b) Echinoderms 3. (b) Presence of water vascular system 4. (a) Amphioxus 5. (a) Cyclostomata 6. (c) have better developed olfactory lobes and cerebellum than amphibians 7. (c) Reptiles 8. (d) Duck billed platypus