All of the following patterns were witnessed by darwin except that species vary a. locally. b. around the world. c. within very short spans of time. d. over time.

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