Answer:
sclera
The outer layer of the eyeball is a tough, white, opaque membrane called the sclera (the white of the eye). The slight bulge in the sclera at the front of the eye is a clear, thin, dome-shaped tissue called the cornea.
Explanation:
The basic unit of a chemical element.
Answer:
a thing or event that evokes a specific functional reaction in an organ or tissue
a thing that rouses activity or energy in someone or something; a spur or incentive
an interesting and exciting quality.
Explanation:
Air masses that are formed over land are called maritime tropical air mass
Answer:
Gram positive bacteria have cell walls composed of thick layers of peptidoglycan. Gram positive cells stain purple when subjected to a Gram stain procedure. Gram negative bacteria have cell walls with a thin layer of peptidoglycan.