What type of tissue produces digestive juices in the stomach.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

During convection, less dense fluid rises and denser fluid sinks.

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