Which of the following offers the most complete list of how proteins function in the body
a) energy production, enzyme development, increased reaction speed
b) structural supports, communication within the body, defense against foreign invaders
c) brain health and development, speeding up reactions, preventing blood clots
d) regulation of metabolism, cholesterol conversion, controlling inflammation

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

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.