The troposphere
the hottest foyer
Con the earth's weather
be
at the earth's surface
is the coldest layer
has very stable air

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Evolution acts upon the population of organisms and not on each individual organism

Which is not true about balanced forces?