Which substance is a nucleic acid? amino acid fat polysaccharide rna

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

During the process of two rails or sides break apart and attract new nucleotide bases to form a new and complete strand.

Which hormone is used by both males and female?