Phagocytosis is defined as

A. Phagocytosis is defined as the feeding of protozoans.
B. the ingestion of solid material by a eukaryotic cell.
C. the uptake of liquid material by a eukaryotic cell.
D. cells of the immune system that ingest pathogens.

Explanation:

Phagocytosis: 1. It is the process by which various living cells known as phagocytes, ingest or engulf other  solid material or cells or particles.

2. The phagocyte may various kind, like a free-living single cellular organism, such as an amoeba, or it can be a one of the body cells, such as a some white blood cel l(WBC), which provide immunity to us.

3. Through phagoctytosis,  phagocytes cell engulf various particle, it is very important process in immune system.

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles