Answer:
(I'm sorry, I got stuck between a and b. This was the best answer I could come up with)
Explanation:
Capillaries are meant to be small so blood cells could move through them in a single file line. If they were an bigger the blood stream would clog up and most of the blood cells won't be able to give nutrients or exchange gas
can you please epxlain your question a litttle better? i can help you?
Starfish have a unique form of digestion in the animal kingdom and a water-vascular system that allows the animal to breathe.
All your answers should be in this article:
http://animals.mom.me/feeding-respiration-starfish-6596.html
<span>Allergy-
A medical condition that causes someone to become sick after eating, touching, or breathing something.
Allergen
A substance or object that causes allergies.
Hope this helps!!
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