The term is called THEORY.
In scientific investigation, a theory is a well substantiated explanation of how a particular phenomenon works based on the set of facts which had been repeatedly confirmed through observations and experiments. A scientific theory gives reliable account of a phenomenon.
Anna's infection affected her body cells, it impaired the body's function and all organs. The urinary tract infection resulted to a septic shock that caused multiple organ failures. In addition to this, bacteria is yet to be identified so there is no actual reason stated for the cause of death.
Most organelles are common to both animal and plant cells. However, plant cells also have features that animal cells do not have: a cell wall, a large central vacuole, and plastids such as chloroplasts.
A species must be able capable of surviving and reproducing despite changes to food sources, climate, or threats from predators.
