Cell-mediated immunity
(Science: immunology) immune response that involves effector t lymphocytes and not the production of humoral antibody.
Responsible for allograft rejection, delayed hypersensitivity and in defence against viral infection and intracellular protozoan parasites.
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..