Answer:
Monoclonal antibodies can treat cancer as well as other illness such as the coronavirus by mimicking the body's immune system. They recognize and target specific proteins on cells. Some on cancer cells by basically blocking signals that tell cancer cells to divide.
Theory ----> not proved yet
Law --------> a theory which is proved and universally accepted
Jack. A signpost is a non-living thing and non living things do not grow. Sam is an adult and he has stopped growing already. Jack is a child and will continue growing the next few years.
Leukopenia means a low count of white blood cells in the body. When there is a low white blood cell count in the body, and in particular a low level of neutrophils (a kind of white blood cell that fights infection), there is quite a significant risk of developing an infection, and once an infection is developed and the white blood cell count is low, the body will not be able to protect itself and fight off the infection. In severe cases , infection may lead to death.
Store energy, provide metabolic fuel and help in digestion