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[[Image: | [[Image:Human_biological_systems.PNG|350px|right]] | ||
A '''biological system''' is a group of [[organs]] working together to perform a common function. For example, the muscular system is involved with movement, the skeletal system provides protection and support, and the circulatory system delivers nutrients and waste to and from the cells of the body. The Bible says: | A '''biological system''' is a group of [[organs]] working together to perform a common function. For example, the muscular system is involved with movement, the skeletal system provides protection and support, and the circulatory system delivers nutrients and waste to and from the cells of the body. The Bible says: | ||
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== Circulatory system == | == Circulatory system == | ||
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: ''Main Article: [[Circulatory system]]'' | : ''Main Article: [[Circulatory system]]'' | ||
The Circulatory system helps maintain [[homeostasis]]. It delivers gases, helps with the regulation of [[temperature]], and the transport of [[nutrition]] and waste.<ref name=wikipedia>[http://en.wikipedia.org/wiki/Circulatory_system Circulatory system] by Wikipedia</ref> It consists of heart, blood, and blood vessels. There are two different types: open circulatory system and closed circulatory system.<ref>Purves, William. Life the Science of Biology. 2005. Couriers Company Inc. p 941.</ref> Most of vertebrates have a closed circulatory system whereas most of the invertebrate have an open circulatory system.<ref name=wikipedia /> | The Circulatory system helps maintain [[homeostasis]]. It delivers gases, helps with the regulation of [[temperature]], and the transport of [[nutrition]] and waste.<ref name=wikipedia>[http://en.wikipedia.org/wiki/Circulatory_system Circulatory system] by Wikipedia</ref> It consists of heart, blood, and blood vessels. There are two different types: open circulatory system and closed circulatory system.<ref>Purves, William. Life the Science of Biology. 2005. Couriers Company Inc. p 941.</ref> Most of vertebrates have a closed circulatory system whereas most of the invertebrate have an open circulatory system.<ref name=wikipedia /> |