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[[Image:Biological_system.jpg|right]] | [[Image:Biological_system.jpg|right]] | ||
A '''biological system''' is a group of [[organs]] working together to perform a common function. For example, the muscular is involved with movement, the skeletal provides protection and support, and the circulatory system delivers nutrients and waste to and from the cells of the body. | 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: ''For you created my inmost being; you knit me together in my mother's womb''{{Bible ref|book=psalm|chap=139|verses=13}}. | |||
Each system of the body is indeed knit together. They are integrated into and reliant upon other systems, and none can function independently. The interdependence of biological systems offers strong evidence for [[intelligent design]] due to their [[irreducible complexity]]. They function synergistically in such a way that the sum of their actions is greater than the addition of the separate, individual actions.<ref>[[Body by Design]] by Alan Gillen. Masterbooks. 2001. p 12</ref> | |||
== Circulatory system == | == Circulatory system == |