Aman drinks swamp water and later contracts malaria. this fact alone does not provide conclusive evidence that swamp water is responsible for causing malaria. to draw a valid conclusion, a experiment with only one factor is needed.

1. Controlled

2. Variable

Explanation:

The scientific method consists of finding scientific answers to a question and it requires to follow several steps.

The scientific method consists of the following steps:

1. Ask Question

2. Do Background Research

3. Construct Hypothesis

4.Test With An Experiment

5.Analyze Results

6. Draw Conclusion

The experiment that is to be conducted should be a controlled one so that it is a fair test and it consists of only one variable. The code consisted of the collection of the existing laws as well as the new laws that were made by Justinian.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."