stem - allow materials to move inside the plant though a system of tubes, leaves - the site of gas exchange and food production , stomata - small openings in the underside of leaves, roots - take in the water and dissolved nutrients from the soil, transpiration - the release of water vapor from stoma , nutrients - substance that living things need to stay healthy,

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?