Sam and ben collected some pond water for science class. they wanted to see what was living in the water. they could see green algae, but sam believed there were other things there as well. what piece of lab equipment should they use to see the smallest animals that live in the pond water?

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.