When the prey is opened, the sea star pushes its stomach out of its body and into the bivalve, secreting enzymes that digest the prey's soft body tissues. The liquefied bivalve is then absorbed into the stomach. Sea stars feed often, and their size depends on the amount of food they eat, not on their age. Sea stars are eaten by bottom-dwelling fish and crabs, as well as by sea gulls when low tides leave the sea stars exposed. Regeneration will occur as long as one fifth of the sea star's body remains intact. Sea stars breed in the spring, producing as many as 2,500,000 eggs.
So, if a very large amount of air were to be blown or forced into their vaginal canals, it's possible that the air could enter their bloodstream, causing a blockage in a blood vessel. As a result, some of these women, perhaps including the pregnant women's fetus, may experience complications.
The alveoli in your lungs are covered with tiny blood vessels called capillaries. It's there in your alveoli that the oxygen in the air you breathe passes into your blood via the capillaries. From your capillaries, the oxygenated blood travels to the heart, where it's pumped out to the rest of the cells in your body. The air you breathe every day is important to your health, but did you realize that air pollution can make breathing more difficult and even cause all sorts of health problems? 2  Jump online to check out the Clean Air Detective Follow the instructions to do a basic investigation of the air you breathe every day.