Explain how microorganisms, humus, and soil health are related.

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

Which particle controls what element an atom is?

Are gametes exactly the same? explain why or why not?