Most oxygen enters the starfish via diffusion into the tube feet (with the water vascular system), or the papulae (small sacs covering the upper body surface). Reproduce alone, or with a mate: Sea stars are capable of both sexual and asexual reproduction. Individual sea stars are male or female.
Specifically for keratosis pilaris, I would make extra certain that you are not eating foods with new-fangled vegetable oils such as corn, sunflower, vegetable a.k.a. soybean, grape seed, cottonseed AND canola oils. These non-traditional vegetable oils are packed with super unstable PUFAs (poly-unsaturated fatty acids).
2. Vitamin B Complex. Found in foods like oatmeal, rice, eggs, and bananas, vitamin B complex contains the nutrient, biotin, which forms the basis of nails, skin, and hair cells. Too little vitamin B complex in your diet can cause dermatitis or hair loss.