The upper most layer is the canopy
Answer: biodiversity
Explanation: it makes sense as the best answer from all the choices, could be wrong tho lol
<span>Proteins secreted by epithelial cells. The basement membrane forms as a thin protein fibre membrane with mucopolysaccharides. It separates an epithelium from underlying tissue. Its main function is to anchor epithelium to dermis underneath. The membrane consists of different extracellular matrix structural proteins.</span>
