In an experiment 2 leaves of the same size and species were weighed and their mass noted. One leaf (leaf A) was covered on both sides with Vaseline, the other leaf (leaf B) was not. Vaseline blocks the stomata. After 48 hours both leaves were weighed again and their new mass noted. Leaf B started out as 1.58g but after 2 days had drop

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 do believe the correct answer would be the third one. location c, because earth is tilted away from the sun at this time

hope this