What limits the growth of phytoplankton? 1.the number of fish eating the phytoplankton

2.the amount of nutrients in the water

3.the depth of the ocean

4.the amount of water that runs off into the ocean

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