During development, an embryo is embedded in the
a. ovary.
b. cervix.
c. vagina.
d. endometrium.

The best answer is d. endometrium.

Endometrium is the innermost layer in the Uterus, and it is found in the whole uterus.

For comparison, Cervix is the structure on the "bottom" of the uterus, vagina is below it (outside of the womb) and the ovaries if where the unfertilized eggs are.

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.