Mechanical Weathering is the process of breaking big rocks into smaller rocks, during this process, no new substances are made. The rock gets smaller but it's still the same rock.
The immune system is spread throughout the body and involves many types of cells, organs, proteins, and tissues. Crucially, it can distinguish our tissue from foreign tissue — self from non-self. Dead and faulty cells are also recognized and cleared away by the immune system.
If the immune system encounters a pathogen, for instance, a bacterium, virus, or parasite, it mounts a so-called immune response. Later, we will explain how this works, but first, we will introduce some of the main characters in the immune system.
This can help in preparing for an upcoming disruption in normal climate change, when climate change can act violent.
Answer: Self-replicating
Explanation:
A worm is a self-replicating type of virus. It enters the network by exploiting the vulnerabilities. The self-replicating nature allows it to move quickly from one computer to other. Due to this feature the worm is able to propagate and spread in multiple system and also have a potential to affect systems worldwide.
It does not enter through a file or program but through of network vulnerability.
