That thing is called abrasion.
C. An outer cell membrane surrounds extracellular fluid before a vacuole forms containing the fluid
it's a type of cytosis vesicular active transport that involves the invagination of the plasma membrane to introduce a liquid in the cell in contrast with the phagocytosis which is made for solids
Answer:
C,D,A,B
Explanation:
Option C - Shows the observation made
Option D - This is a question that asks what could be the cause of the observation made
Option A - This is an information on the question asked
Option b - This is a procedure to investigate the observation made