How Does Temperature Affect the Xylem in Tomato Plants? This experiment involves testing the size of the xylem in Roma tomato plants when exposed to different temperatures. Students need six Roma tomato plants, six pots, planting soil, a small and large beaker, blue dye, water, ice, heat lam...
A. plants don't need water to grow B. sunlight is important for plant growth C. group B plants were not healthy D. group A plants had special seeds 相关知识点: 试题来源: 解析 B。解析:A组植物比B组植物长得快,唯一的区别是A组有更多阳光,所以可以推断出阳光对植物生长很重要,B选项正确。A...
When we do a science experiment about plants, we often use a ___ to dig the soil. A. Spoon B. Fork C. Trowel D. Knife 相关知识点: 试题来源: 解析 C。解析:本题考查与植物实验相关的器材词汇。A选项“Spoon”是勺子,一般不用于挖土;B选项“Fork”是叉子,也不太适合挖土;C选项“Trowel”是...
相关知识点: 试题来源: 解析 C。本题考查跨学科知识。植物生长的实验与生物学相关,生物学研究生命现象和生命活动规律,包括植物的生长。A 选项数学主要涉及计算和数量关系;B 选项地理研究地球表面的自然和人文现象;D 选项历史研究过去的事件和发展。反馈 收藏 ...
With so many different plants out there, it can be hard to decide which plant is right for your science experiment. Before you even start to look for a plant, it is important to sit down and really think about the experiment that is being conducted or what you are trying to teach your...
The science experiment demonstrated that plants need ___ to grow. A. water and sunlight B. air and plastic C. stones and sand D. books and pencils 相关知识点: 试题来源: 解析 A。植物生长需要水和阳光,空气也需要但选项中没有空气和水及阳光这个选项,B 选项中的塑料、C 选项中的石头和沙子、...
The result of the science experiment was that plants need ___ to grow. A. water B. sunlight C. air D. all of the above 相关知识点: 试题来源: 解析 D。植物生长需要水、阳光和空气。选项 A 水是必须的;选项 B 阳光也是必须的;选项 C 空气同样重要。反馈 ...
After doing a science experiment, we concluded that plants need sunlight to grow. What will happen if a plant doesn't get enough sunlight? A. It will grow taller. B. It will grow faster. C. It will turn yellow and grow weak. D. It will change color to blue. ...
Scientists say it raises the possibility that plants are all communicating with each other in a complex "invisible language" which we know nothing about. Professor Stewart, who saw the experiment at Exeter University, said, "The gas caused a change in the biological activity in the two ...
1Reported in a way that does not allow deriving exact geographical coordinates;2Application height not given;3Total rainfall (mm) during experiment given, but explicit duration of experiment not stated;4Variety not given;5Analytical limits of detection not given. ...