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In vertebrates, chemical messengers called hormones are secreted by the _____ system. a.endocrine b.excretory c.hormonal d.pituitary
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Asked 2/4/2011 8:22:42 AM
Updated 7/18/2015 8:23:42 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by Andrew. [7/18/2015 8:23:19 AM], Confirmed by Andrew. [7/18/2015 8:23:20 AM]
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User: In vertebrates, chemical messengers called hormones are secreted by the _____ system. a.endocrine b.excretory c.hormonal d.pituitary

Weegy: In vertebrates, chemical messengers called hormones are secreted by the endocrine system.
Expert answered|bad_debts|Points 220|

User: The two types of vascular tissue in plants are _____. a.dermal and cuticle b.cortex and pith c.phloem and xylem d.parenchyma and collenchyma

Question
Asked 2/4/2011 8:22:42 AM
Updated 7/18/2015 8:23:42 AM
1 Answer/Comment
This answer has been confirmed as correct and helpful.
Edited by Andrew. [7/18/2015 8:23:19 AM], Confirmed by Andrew. [7/18/2015 8:23:20 AM]
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The two types of vascular tissue in plants are phloem and xylem.
Added 7/18/2015 8:23:42 AM
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