Which of the following best describes the function of the pistil in plant reproduction? it grows into the endosperm, which provides energy for the growing embryo. it grows into the pollen tube, which connects the stamen to the ovule. it is the male part of the plant and contains the anthers, which produce pollen. it is the female part of the plant and contains the ovules, which house the main egg.

D. It is the female part of the plant and contains the ovules, which house the main egg.

Explanation:

Pistil is the part of female reproductive system of the plants. Stigma, style and ovary together constitute a pistil. Ovary is the swollen base of the pistil that contains eggs or ovules to which the nuclei of the pollen grain fuse and form seed.

Stigma is the outer most part that captures the pollen grains and transfers it to the ovary through the style. Style is the elongated part that connects the stigma and the ovary.  

the backbone of the dna and rna compound is sugar phosphate.