1. james hutton developed the principle of uniformitarianism. which
of the following statements best describes that principle?
a. it was developed based on observations of living
organisms.
b. since hutton was a geologist, the principle had no
influence on darwin's work.
c. it proposed that the processes that shaped earth in the
past no longer occur today.
d. it proposed that earth was shaped by the same physical
processes in the past as it is in the present.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.