Which type of immune response involves direct contact t cells and antigens?

Identifying and destroying harmful substances

Explanation:

The three phases of immunity titled are: recognition, attack, and memory. A helpful mnemonic, for this will be to RAM, the pathogen out of the body. The initial step of recognition signals to the body is a foreign pathogen, stimulating an immune response.

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.