show the effect of the independent variable C. make the experiment more complex D. have something to compare with the E. xperimental group 相关知识点: 试题来源: 解析 D。解析:实验中对照组的目的是与实验组进行比较。选项 A“prove the hypothesis”是证明假设,对照组不能直接证明假设。选项 B“...
The purpose of variable control in an experiment is to ___. A. add more variables B. reduce the number of steps C. make sure the results are reliable D. change the outcome 相关知识点: 试题来源: 解析 C。变量控制的目的是确保结果可靠。选项 A 增加更多变量错误;选项 B 减少步骤数不对;...
Explain the purpose of a control group in experimental design. What will happen if an experiment does not have a control group? What is a positive and negative control in an experiment? In Biology, what is a controlled experiment? Summarize the purpose of having controls in an experiment. ...
In anexperiment, data from an experimental group is compared with data from a control group. These two groups should be identical in every respect except one: the difference between a control group and an experimental group is that the independent variable is changed for the experimental group, ...
An Experiment on the Control of Pear MidgeS. H. BennettH. G. H. Kearns
解析 A。解析:在实验中,由科学家改变的变量被称为自变量。选项 B“dependent variable”是因变量,是随着自变量的变化而变化的变量。选项 C“control variable”是控制变量,保持不变以确保实验的准确性。选项 D“constant variable”是常量变量,也是保持不变的变量。
In an experiment, we need to control variables to ensure the accuracy of the results. “Control variables” means ___. A. change variables B. keep variables the same C. increase variables D. decrease variables 相关知识点: 试题来源: 解析 B。“Control variables”的意思是控制变量,也就是保持...
control experiment Thesaurus Medical Encyclopedia Wikipedia n an experiment designed to check or correct the results of another experiment by removing the variable or variables operating in that other experiment. The comparison obtained is an indication or measurement of the effect of the variables concer...
所以,"in the control of"通常用来描述一种主动的、动态的控制状态或关系。 此外,“in the control of”还可以用来强调对某个复杂系统、过程或情况的有效管理和指导能力: 4.在科学研究或实验中,表示实验条件、变量等受到严格控制: The experiment was conducted under conditions that were in the control of the...
In an experiment (实验), scientists divided 100 people into two groups. People in the first group were asked to ride a bike slowly for 60 minutes. People in the second group only had to do it really fast for 6 minutes. It shows that the short but intense (剧烈的) exercise made the ...