Vertebrates, and a few invertebrates, have a closed circulatory system. Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness. In this type of system, blood is pumped by a heart through vessels, and does not normally fill body cavities.
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The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture and circulates blood throughout the body.
They are similar to animals because they can move and they are heterotrophs (heterotrophs are organisms that cannot manufacture their own food and instead get their food and energy by taking it from organic substances like plant matter).
Answer:This proves more teens admitting to drinking while driving in 2004 than 2013.
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D is the answer to your question
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