Which is true about glucagon? a. glucagon is a hormone made by the pancreas; it raise blood glucose levels. b. it is a storage form of carbohydrate; it reduces blood glucose levels. c. it is a hormone made by the pancreas; it lower blood glucose levels. d. it is a storage form of carbohydrate; it increases blood glucose levels?

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.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v