Which structure bacteria to attach within the tissues that they will infect? which structure bacteria to attach within the tissues that they will infect? flagella cell wall capsule nucleoid?

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.

because the light is a great source of energy for the plants to survive. (i hope this )