Pinworms have smooth bodies bilateral symmetry and complete digestive tracts. what type of the animal are they

Pinworms are belongs to nematode (roundworm) phylum, which are the parasite of vertebrates. They are also known as seatworm and threadworms.

Pinworms are common intestinal helminthiasis (parasite) especially in humans. They are tiny, white color and narrow worms (less than half-inch in size).

Pinworm infection is known as enterobiasis (oxyuriasis). Primary symptom of this infection is itching and skin irritation.

Pinworm belongs to kingdom animilia, and class chromadorea.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.