What is an animal that is classified as an invertebrate? a. flounder b. fish c. shark d. sponge

What is hydroelectric power produced by?

Construct an explanation about the function of mitosis for multicellular organisms

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.