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flashcards for ch12

thses are key terms for ch 12

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• Auxins	are one type of plant hormone
tropisms	• Unequal distribution of auxins causes unequal growth responses called
Phototropism	• Growth of a plant towards light due to unequal distribution of auxins
Geotropism	• Growth of a plant due to gravity
Endocrine Glands	• Endocrine glands synthesize and secrete hormones which control the activities of animals
• Hormones	are chemicals secreted in one area of the body which affect responses in other areas
Metamorphosis	• The development in an animal larva that transforms into a sexually mature adult
chemical control	coordinates body processes by transmitting messages from one part of the organism to another