Calculați cantitatea de apă din plasma unei persoane care cântărește 75 kg, știind următoarele: - Volumul de sânge reprezintă 8 % din masa corpului; - Plasma reprezintă 55 % din volumul sângelui; - Apa reprezintă 90 % din volumul plasmei. Scrieți toate etapele parcurse pentru rezolvarea cerinței.

How are fossils most commonly formed

As soon as i live in alabama and i have question to me with a report. or rather a statement. the statement i need with: discuss the influence of cost and availability on your states (alabama) statistics. i really need to complete this. so anything will ! 20 points are up for grabs to the most !

According to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?               a.  this implies that dna and proteins aren't essential in cells today.    b.  this implies that rna can catalyze any chemical reaction that enzymes catalyze.    c.  this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.    d.  this implies that dna and proteins evolved after rna.