Plants obtain the majority of the carbon necessary for building these structural molecules from?

Describe the two types of vascular tissue

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

What is the purpose of presenting a false dilemma in a speech?