False. They have an open <span>circulatory system</span>
It might be an ecosystem
Hope this helps
<span>I suggest dialysis to the patient. Dialysis is a medicine. People who failed with the kidneys may have difficulty eliminating waste and unwanted water from the blood. Dialysis is an artificial way of carrying out this process. Dialysis substitutes the natural work of the kidneys.</span>
<u>Darwin believed that the desires of animals have nothing to do with how they evolve, and that changes in an organism during its life do not affect the evolution of the species.</u>
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Binocular vision. Binocular vision is vision with two eyes, and the main cue for depth perception associated with binocular vision is retinal disparity. ... The disparity (difference) between these two retinal images (retinal disparity) can be used as a cue for depth/distance.
