Identify   A space (not specific cell) [a]

Identify   Shaded area membrane [a]

Identify     A big category (not specific tissue) [a]

Identify   A pink structure [a]   B pink ridge [b]

Identify   D space (not the specific cell) [a]

Identify C brown structure [a]   D layer [b]

Identify   Bonus B fiber [a]

Identify   B strings [a]

Identify   D thin purple membrane [a]

Identify   A membrane [a]