Final answer:
Capillary action is applicable to living things in areas such as plant transportation, blood circulation, tear production, and fluid movement in porous materials.
Step-by-step explanation:
Capillary action, which is the ability of a liquid to flow up a small tube against gravity, is applicable to living things in several ways. In plants, capillary action occurs in cells called xylem, which helps transport water and dissolved nutrients from the soil up through the roots and into the plant. In the human body, capillary action is responsible for the movement of blood in capillaries, allowing for the collection of small amounts of blood for medical tests. Additionally, capillary action is involved in processes such as tear production and the movement of fluids in porous materials like paper towels and sponges.