Although hospice and palliative care share the same principles of providing comfort and support for patients, palliative care is available throughout a patientâs experience with cancer, whereas hospice is offered only toward the end of life.
The process used by some protists to actively ingest food particles is called Phagocytosis.ther protists like fungus grow  above their food source to get nutrients. Some protists engulf  bacteria and digest them internally, by extending their cell  membrane and forming a vacuole around the bacteria.
In industry, radioactive tracer substances can be put into pipes and machinery, then we can detect where the substances go. This is basically the same use as in medicine. Gamma rays kill microbes, and are used to sterilise food so that it will keep fresh for longer. This is known as irradiated food.