Which of the following tissues has dead cells?

Name the tissue which is present in the veins of leaves.

Survival of plants in terrestrial environment has been made possible by the presence of

State whether the following statement is true or false:
Cotyledons represent a bit of pre-designed plant in the seed.

When observed under a microscope,small pores are seen in the epidermis of the leaf. What are these pores called? Write two functions of these pores.

$(i)$ Draw a diagram of the epidermis of a leaf showing the surface view and label the stomata,guard cells,and epidermal cells.
$(ii)$ Answer the following:
$(a)$ How is the epidermis of plants living in very dry habitats adapted?
$(b)$ Write the functions of guard cells of stomata in the leaf.