Extinction is a natural process that may be caused by natural selection, shortage of food or natural calamities. Hunting, deforestation, pollution, the conversion of uncultivated areas into pastures, the illicit trade of wild animals as well as climatic changes have made life more difficult for many animals.
Recall that apoptosis is programmed cell death—think of it as the cell deciding to self-destruct. So you might ask yourself, why would a cell need to die?
Remember that, in the cell cycle, there are certain checkpoints where a cell may stop and ensure everything is going smoothly. If something went wrong, the cell could potentially become cancerous, in which case it is much safer for a cell to undergo apoptosis rather than risk developing cancer.
Another example would be in the immune system. When cells get infected, cells called <em>cytotoxic t cells</em> go around and force these infected cells to undergo apoptosis in order to reduce the spread of infection.
Hope this helps!
Answer:
Thus, the correct answer is option A.
Explanation:
Immunofluorescence microscopy is commonplace technique that is used for microbiological samples. The immunofluorescence microscopy use light microscopy with fluorescent microscopy.
It is used to cultured cell lines, tissue sections and individual cells it is used to analyze the small and nonbiological molecules and to the glycans and proteins and other macromolecules.
Thus, the correct answer is option A. Can be used to map the location of specific molecules in cells.
