Weather : too cold or too hot due to climate change
Habitat can be destroyed due to natural phenomenon
Prey cut off by physical barrier
Lack of water
It's main function is to produce ATP, the energy currency of the cell. The mitochondria take fuel (glucose) and essentially burns it. The energy given off by oxidizing the fuel is harnessed by causing ions to move across a membrane, kind of like pumping water. The ions then flow down through a protein which synthesizes ATP much like the water then flows down through a dam to generate electricity.
An element property of an of an organism physiology can appear when a number of organisms is in the same environment. the behavior demonstrated by one may be mimicked or adopted by another.
hope this helps XD
Answer:
Each cell line produces and secretes antibodies that recognize one part of the immunizing molecule. These antibodies are called monoclonal antibodies.I hope this helps you...