What does absorption mean? a - breakdown of molecules b - enzyme activity on nutrients c - network of chemical reactions that occur in the body d - process of assimilating

Which of the following is a cause of a dna mutation? o a. the linking of amino acid subunits into a long chain o b. the transcription of dna into rna o c. an error in the repair of damaged dna d. the diffusion of molecules across the cell membrane submit

What was the land like over 500 million years ago? what was under the sea?

Hershey and chase confirmed that dna, not protein, was the genetic material. how do the results of their two experiments support this conclusion?