帮忙用英文回答几个问题 ~急

来源：百度知道 编辑：UC知道 时间：2024/06/17 14:41:19
生物的问题~
大概正确就行
1 how does a hypothesis help scentists understand the natural world?
2 distinguish between a variable and a control
3 what steps are involved in making a conclusion
4 why is publishing the design and results of an experiment considered an essential part of science
5 how are unicellular and multicellular organisms alike?how are they different?
6give an example ofchanges that occur during the life cycle of a multicellular organism

谢谢谢谢~

1. In science an hypothesis is 'a tentative statement about the natural world leading to deductions that can be tested,' either by experimentation or by prediction and observation. Verified deductions strengthen the hypothesis, while incorrect deductions lead to rejection or modification of the hypothesis.

2. In the design of experiments and data analysis, control variables are those variables that are not changed throughout the trials in an experiment because the experimenter is not interested in the effect of that variable being changed for that particular experiment.

Say you are doing an experiment to see if sugar effects how a child behaves. You have two children (or groups of children).

Control - The control group would be the children who receive no sugar in their diet.

Variable - The variable in the experiment would be the children you feed candy or sugar to.

3. Scientist use the data from an experiment to evalua