roots - store food, stem - supports leaves and flowers, leaves - make food, flower - produces seeds and fruits, Function of spines on cactus - To protect against animals. , tree tap root - get water from deep under ground, barrel cactus - quickly absorb water,

plants structure

列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?