The lymphatic system includes areas of high concentrations of APCs, T and B cells.
<h3>What is the lymphatic system?</h3>
The lymphatic system is a branch of the circulatory system which consists of a system of organs , tissues, cells and vessels known as lymphatic vessels, which help transport the fluid, lymph around the body.
The lymphatic system contains high concentration of immune cells.
Therefore, the lymphatic system includes areas of high concentrations of APCs, T and B cells.
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That would be the independent variable :)
Answer:
They help you live longer
Explanation:
Research has shown that social connections not only impact your mental health, but your physical health as well. A review of 148 studies (308,849 participants) indicated that individuals with stronger social relationships had a 50% increased likelihood of survival.
An organism can "make a living" and survive in its niche.