Fill in the blank below with the vocabulary word that best completes the sentence. Natural selection leads to
a process of change in a population over time.
DO NE

natural growth

Explanation:

because all thing's which are natural are natural resources.

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 need an image of the diagram