Cork cells are made impervious to water and gases by the presence of

Name the following and give one characteristic of each:
$(a)$ Living tissue that provides mechanical support in plants.
$(b)$ Highly specialised cells for being stimulated and then transmitting the stimulus very rapidly within the body of animals.
$(c)$ Animal tissue with elongated cells and contractile proteins responsible for movement.

Give the characteristics and role of the following:
$(i)$ Cutin
$(ii)$ Suberin
$(iii)$ Sclereids

What is the function of $RBCs$?

Name the connective tissue that is found between skin and muscles.

The dead element present in the phloem is