What are the two basic components of a connective tissue?

The intestine absorbs digested food materials. Which type of epithelial cells are responsible for this?

The girth of the stem or root increases due to

The water conducting tissue generally present in gymnosperms is

Fill in the blanks:
$(a)$ Cork cells possess ........... on their walls that make them impervious to gases and water.
$(b)$ .................. have tubular cells with perforated walls and are living in nature.
$(c)$ Bone possesses a hard matrix composed of ............... and ............. .

Which cell does not have a perforated cell wall?