How much time should be allowed for a 605-mile car trip if the car will be traveling at an average speed of 55 miles per hour?

The Correct answer to this question for Penn Foster Students is: 11 hours

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.

it’s lava came from an explosive eruption