What are some food examples of lipids?

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

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?

What are the subsystem of the earth