In the immune system, the first line of defense are mechanical and physical barriers, such as the skin and the cornea of the eye. The main line of defense, meanwhile, are the innate immunity and acquired immunity of an organism.
The skin is the "first line of defense".
The body has three main lines of defense against pathogens. They are as follows:First line of defense: Skin, Mucous membranes, and Secretions of skin and mucous membranesSecond line of defense: Phagocytic white blood cells, Antimicrobial proteins, and the Inflammatory responseThird line of defense: Lymphocytes, and Antibodies
The department of the US military that was first established and serves as the main line of ground defense for the US is the United States Army. The Army is responsible for conducting land-based military operations and plays a crucial role in both national defense and international military engagements.
the body's second line of defense against pathogens is the B cells.
Vernier scale consists of main scale and vernier scale. The first line or the zeroth line coinciding with the main scale reading is the main scale reading. The vernier line except zeroth line coinciding with any line on main scale is the main scale reading.
a foil
A defense in front of the main defense.
i got it
The control line functions as its name suggests, it is a line that attaches the model aircraft to the controller and through which a person commands the craft. This is in contrast to a wireless model aircraft, which is not physically attached to the controller in any way.
No unless you want to shower with your sewerage. The sewer line must be unblocked first.
Defense and recreation.
what is the main line in a store