帮忙用英文回答几个问题 急

题目

帮忙用英文回答几个问题 急
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

答案

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 s...