More than a million Indians suffer from cancer and a large number of them die from it annually. Unlike norrnal cells, cancer cells possess some unique features. List any two of them.

The product of photosynthesis is transported from the leaves to various parts of the plants and stored in some cell before being utilised. What are cells tissues that store them?

Shyam bought 5 two hundred page notebooks and 3 hundred page notebooks from the school store. The price. of a two hundred page book is 9 rupees and the price of a hundred page book is 4 rupees. How much did Shyam spent? Use any letters you like for the number of two hundred page note books bought from this store, the number of hundred page books bought and the total amount of money spent by a student, and write the relation connecting them.

Read the features of cell layers in the wall of human intestine. * It consists of circular and longitudinal smooth muscles. *Outer thin layer formed of mesothelium. *A layer formed of loose connective tissue and nerves. *Epithelium with goblet cells to secrete muscus. Identify the cell layers and arrange them from inside to outside as seen in the section of intestine.

Read the following statements carefully and select the appropriate option given below. (i) Reproduction is defined as a biological process in which an organism gives rise to the young ones (offspring) similar to itself. (ii) Adventitious buds arise from the notches present at margins of leaves of Bryophyllum. (iii) Asexual reproduction is common among single celled organisms, and in plants and animals with relatively simple organisations. (iv) A few plants exhibit unusual flowering phenomenon, some of them such as bamboo species flower only once in their life time, generally after 50-100 years. (v) The events of asexual reproduction though elaborate and complex, follow a regular sequence.