Most amphibians have an aquatic larval form with and a terrestrial adult form with

Which best explains why there are 64 possible codons in the genetic code and only 20 amino acids that make protiens of living organisms on earth

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis