A. mapping paleomagnetic reversals b. wegener's mapping of the supercontinent pangaea c. gps tracking of earth's crustal movements d. discovery of sea floor spreading trace the development of plate tectonics by placing the supporting evidence in correct chronological order. a) a. b. c. d. b) b. c. d. a. c) b. d. a. c. d) d. b. a. c.

answer: which definition best describes global warming?

a long-term change in the earth's climate

a long-term increase in the earth's average temperature

a long-term change in the climate of a region or a city

solar heat that is radiated out into space

explanation:

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.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands