Examlex
The acidity of oxides of main group elements increases down a group, from top to bottom.
Cytokines
Chemical messengers secreted by cells in the immune system, forming a communication link between the nervous and immune systems.
Leukocytes
White blood cells that are part of the immune system, involved in protecting the body against both infectious disease and foreign invaders.
Memory Lymphocytes
Specialized white blood cells that remember previous invaders and help the immune system respond more quickly and effectively to diseases the body has encountered before.
Immune System
The body's defense system against infections, diseases, and other potentially damaging foreign bodies.
Q20: The two equilibrium constants for the same
Q37: Select the correct name for the following
Q48: All Brønsted-Lowry bases have at least one
Q55: Valence bond theory predicts that carbon will
Q57: Which of the following ions will be
Q57: The reaction X <font face="symbol"></font> Y is
Q61: For the solid forms of the following
Q68: Briefly list the features/properties common to all
Q111: What is the difference between 1-butyne and
Q115: In one sentence, what is the general