Suppose you are part of a community with a sustainable yield of fish. what does this yield indicate? a. the community has enough fish to fulfill its nutritional requirements b. no other species has been inadvertently caught. c. the population of fish has not been depleted. d. the fish are harvested with humane methods. e. the catch has decreased each year.

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.

i think its the first one

yes it is weird but true