This process is called autophagy.
Autophagy is an intracellular process of degradation, which includes the destruction of cytoplasmic components in the lysosomes. These components are considered unnecessary or dysfunctional and that is why they are recycled by the cell.
Autophagy has four sequential steps which are the sequestration, the transport of the components to the lysosome, the degradation, and the recycling and utilization of the degradation products.
Autophagy is considered as an adaptive response to stress by ensuring the survival of the cell and the tissue.
The correct answer is the Cell Death.
The cell death may be the result of the natural process of old cells dying and or might be as the result of different factors like disease or localized injury. The cell death is necessary for the survival of an organism, for its development and growth. There are different types of cell death and different classifications of them. Most commonly it is classified by its s morphological appearance, so it may be apoptotic, necrotic, autophagic or associated with mitosis.
Cell Differentiation<span> and Tissue. Within multicellular organisms, tissues are organized communities of </span>cells<span>that </span>work together<span> to carry out a specific function. The exact role of a tissue in an organism depends on what types of </span>cells<span> it contains.</span>
Darwin called the ability of an organism to survive and reproduce in its environment fitness.
Some organisms were fit to do all of these things, whereas others were not.