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two types of glands
A group of cells that prepare and release a [[chemical]] for use by the [[body]].<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc.
A group of cells that prepare and release a [[chemical]] for use by the [[body]].<ref>Wile, Dr. Jay L. ''Exploring Creation With General Science''. Anderson: Apologia Educational Ministries, Inc. 2000</ref> Glands are classified as [[endocrine]] glands, which release those chemicals directly into the [[blood]]stream, and [[exocrine]] glands, which release them through [[duct]]s.
2000</ref>
==References==
==References==