高中生物第四章生态系统的稳态4.2生态系统稳态的维持第三课时生态系统中的信息传递省公开课一等奖新名师.pptx

1/63,2/63,生态系统中信息传递,物理过程,光、声、热、电、磁,3/63,代谢产物,植物代谢产物,动物外激素,表现,动作,4/63,传递,反馈,各个组成成份之间,调整机制,生态系统稳态,5/63,提前开花,性外激素,6/63,7/63,8/63,9/63,10/63,11/63,12/63,13/63,14/63,15/63,16/63,17/63,18/63,生态系统稳态维持,保持或恢复,结构和功效,自我调整,19/63,抵抗外界干扰,保持原状,破坏后恢复到原状,20/63,负反馈,复杂,强,一定程度,超出,21/63,过分干扰,物质与能量投入,结构和功效,22/63,23/63,24/63,25/63,26/63,27/63,28/63,29/63,30/63,31/63,32/63,33/63,34/63,35/63,36/63,37/63,38/63,维持生态系统相对稳定条件,39/63,40/63,41/63,42/63,43/63,44/63,45/63,46/63,47/63,48/63,49/63,50/63,51/63,52/63,53/63,54/63,55/63,56/63,57/63,58/63,59/63,60/63,61/63,62/63,63/63,