Givenwhat you know about muscle contraction and neurophysiology, why are we willing
to
sacrifice bone density to maintain blood calcium?

What is the similarities and differences between bacteria and eukaryote?

Where does the information about where each transcription factor binds originate?

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