The outer layer of a leaf's skin is called the waxy cuticle, or just cuticle. You could also include the next layer, the epidermis layer. Mostly, though, the leaf's skin is called the 'Leaf surface'.
The outer layer of a leaf is called the epidermis (from a Greek word meaning "over-skin"). Its function is to protect the insides of the leaf, which carry out the chemical reaction known as photosynthesis.
cloroplasts
The outer layer of the leaf is called the cuticle. Its functions include reducing water loss through evaporation, protecting the leaf from pathogens and herbivores, and serving as a barrier against harmful UV radiation.
The outer skin of a fruit is called the peel. the outer skin of a peach or grape is called the 'epicarp'.
Epidermis
The upper skin of the leaf has a layer of wax on it, called a cuticle. This makes the leaf waterproof. The upper skin of the leaf has a layer of wax on it, called a cuticle. This makes the leaf waterproof.
EPIDERMIS-- is the outer layer of the leaf its protect the inner tissuesa layer of way is present called cuticleon top
cuticle
Epidermis
The outer skin of an oak tree is called the bark. It is also known as rhytidome.
The outer skin of an oak tree is called the bark. It is also known as rhytidome.