Identify   B strings [a]

Identify   D thin purple membrane [a]

Identify   A membrane [a]

Identify   A membrane [a]

Identify   A clear specific layer [a]   B specific layer [b]

Identify A pink bump [a]   E layer [b]

Diffusion occurs faster with small molecules.

Identify   Bonus A the function of this specfic tissue [a]

Identify   B thin lines [a]

Identify     A liquid [a]