Evidence from miller and urey's experiments suggest that complex organic molecules could be formed from other, simpler molecules. why is it unlikely that this process is still occuring today?

Look at the figure above. which atmospheric layer has around 80 percent of the mass of the earth's atmosphere? (hint: it's where the clouds seen on earth are formed.) a. exosphere b. troposphere c. stratosphere d. thermosphere

Match each term to its best definition? sedimentary depositional enviornment

Yeast cells reproduce quickly by budding. this is a form of reproduction so all the yeast cells a) sexual; vary b) asexual; vary c) asexual; are identical d) sexual; differ from the parents submit hint structures and functions of cells cellular reproduction