Which part of the cell is responsible for making ATP that the cell uses for energy?

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above

What was the impact of the concordat of worms?

The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids