why is the pattern of differences that exists from earlier to later fossils in the fossil record supports the idea that evolution has taken place on earth

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%