The hypodermic layer is composed of mostly...

loose connective tissue

Explanation:

A layer of tissue lies immediately below the dermis of vertebrate skin. It is often referred to as subcutaneous tissue. The hypodermis consists primarily of loose connective tissue. It contains larger blood vessels and nerves than those found in the dermis.

i hope this helps! :)

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.