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.

answer: the blood-brain barrier is a layer of specialized membranes and cell processes designed to keep undesirable substances from passing from the bloodstream into the precious tissues of the brain. while the blood-brain barrier does keep most bad things out of the central nervous system, it is not impermeable.

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