Blood clots can be referred to as clumps of blood that has transformed from a liquid state to a gel-like state or semisolid state. The end product of the process of bleeding termination (hemostasis) is blood clots. They are caused due to platelets' accumulation.
Blood clots usually occur on the injury of a patient when the blood vessel has been impaired; the blood platelets become sticky and then accumulate around the injury area. There are two major types of blood clots, which are thrombus and embolus. On the other hand, tissues are formed in multi-cellular organisms due to the structural and functional interconnection of cells.
Tissue can be said to be a group of cells with the same structure, similar origin, and carry out the same function in a particular living organism. Also, different tissues with a specific structure and function come together to form an organ (such as lungs, heart, kidneys, stomach, etc.) in the body.