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конспект 9 10 11 параграфа по биологии 9 класс Сухорукова Кучменко.Помогите пожалуйста примерно 10-15 предложений) http://www.alleng.ru/d/bio/bio201.htm

5-9 класс

Vlad0071 09 июня 2013 г., 0:03:31 (10 лет назад)
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Ivanova54638
09 июня 2013 г., 1:01:30 (10 лет назад)

Внешняя среда- это условия живой и неживой природы, в которых обитает организм и которые оказывают влияние на его состояние, рост и размножение. Экологические факторы-это компоненты, которые оказывают существенное влияние и вызывают появление приспособительных реакций. 
Действие экологического фактора на организм зависит от его интенсивности. Интенсивность каждого фактора непостоянна и изменяется во времени. Значение фактора,  наиболее благоприятное для жизнедеятельности, называют оптимальным. Значение фактора, при которых существование организмов становится невозможным, называют нижним и верхним пределами выносливости. 
Фактор, приближающийся или выходящий за пределы выносливости данного организма, называют ограничивающим. 
Параграф 10
Приспособленность организма к действию факторов внешней среды, называют адаптациями. 
Пассивная приспособленность основана на повышении устойчивости к факторам внешней среды за счёт экономии энергетических затрат. 
Состояние покоя- это физиологическое состояние, при котором устойчивость организмов превышается за счёт замедления интенсивности дыхания и др. процессов обмена веществ, запасания в клетках жиров и углеводов. 
Второй тип адаптаций-активный. Организмы сопротивляются действию факторов и поддерживают постоянство внутренней среды независимо от колебаний внешних условий. 

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21 дек. 2015 г., 19:50:36 (8 лет назад)

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04 окт. 2016 г., 6:51:21 (7 лет назад)

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