Anyone

the movement of fragments of earth material from one place to another is called:

weathering

erosion

subduction

transduction

I'd say subduction, as it makes the most sense. But none of those are very clear. Good luck

Well weathering is to wear away or change the appearance or texture of (something) by long exposure to the air.

Erosion is the gradual destruction or diminution of something.

Suduction is the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.

And transduction is the process by which foreign DNA is introduced into a cell by a virus or viral vector.

So my best guess would be Subduciton. :)

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

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.