Menuؿ 4
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(1)Introduction
The functions that are required for life.
(2)Nutrition
(3)Respiration
(4)Transportation
(5)Excretion
(6)Homeostasis
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The functions that are required to respond.
(7)Hormones
(8)Receptors
(9)Nervous System
(10)Support & Movement
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The functions that are required to keep the species.
(11)Reproduction
(12)Growth
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(29.09.2009)