The statement above is TRUE. T cells are part of the white blood cells and function in the immune system response of the body. T cells function by destroying infected cells. T cells can be activated either by T cell receptor engagement with the antigen or by the signal that is produced by the receptor ligand interactions.
Science or any other subject or field of study related to it is there to provide the most of the knowledge in its purest form or we can say it provides us the information which is required to have a more developed and well mannered society. Humans are composed of the two different portions one is the biological which includes the physical or bodily systems, while the other part is related to be more abstract in nature. And for the second to be more understandable there are a number of studies to undertake in order to know more about a human.
There are a number of human beings who are characterized differently by the research workers and the scientist when it comes to the laws and principles presented inside the subjects of "Socio-biology".As, there are different forms of phases or situations for each individual to have inside a society and for that different individuals are analyzed as according to the given standards in a given pattern. As the different factors which are analyzed are the I.Q level, pattern of different behaviors etc that are related to each individuals lifestyle and also to the person's physiological form. These whole set of research works performed done is considered to be more accurate to determine the different level of perceptions that each individual has inside any community or sharing a mutual space while interacting with the other beings.