If it is an animal like an eagle or one who preys on other animals it is a Carnivore, if it is an animal such as a cow or mouse it is herbivore, if it is a mushroom or other fungus it is decomposer, and if it is a plant like a tree or flower it is a producer.
Short answer:
It has a "birth" (in the nebula) just like humans are born inside their mothers.
It gets older and changes(in color which is due to its Temperature and in Size) just like humans as they go from babies to adults to elders. They also both die (Stars exploded or become black holes) stars "die out" and humans literally die. Both can die(not literally for stars) from old age.
The statement above is TRUE.
Immunological memory is a characteristic of the immune system, which give it the capacity to remember antigens on pathogens, tumor cells, etc, and thus is able to raise greater immunological response against them. Immunological memory is formed by earlier exposure to an antigen. This antigen will be remembered by certain leukocytes and antibodies in the immune system if the body is exposed to it again.
