Live Interaction#!#CBSE Term I and Term II

Studey of interaction of antigen and antibody in blood is termed:

Fill in the blanks : Intersactions between individuals of same species are termed ………….. interactions and those between individuals of different species are termed …………. interactions .

Match the terms in column I with suitable terms in column II :

The fourth term of a G.P. is square of its 2nd term and the first term is -3. Determine the (i) 7th term (ii) 6th term

Match the terms mentioned in Column I with the terms in Column II

Match the terms in column I with those in column II:

If the first term of an A.P. is 2 and the sum of the first five terms is equal to one fourth of the sum of the next five terms, find (i) the 20th term (ii) the sum of first 30 terms.

Define the terms : (i) alburnum (ii) duramen.

Match the terms of column I with those of column II.

If the nth term of a progression is (4n-10) show that it is an AP. Find its (i) first term, (ii) common difference, and (iii) 16th term.