# Tutor profile: Meghana Devi S.

## Questions

### Subject: SAT

If the answer when a number divided by 2 is the same as the answer when that number is divided by 5, What is that number?

The only number that will make this scenario possible is the number 0. 0 divided by any number 0.

### Subject: Biology

Describe the positive feedback loop and provide an example.

Many body processes are carried out and regulated through feedback mechanisms. Maintaining homeostasis and adapting to changing conditions is made available by signaling and subsequent response to the signaling. Positive feedback loops occur when a cellular byproduct in a feedback loop has an upregulating effect on the loop. A common example of this occurs during childbirth. Labor-inducing and sustaining hormone, oxytocin, increases in concentration during the process due to its upregulation in the feedback loop.

### Subject: Statistics

What is the difference between a Type I error and a Type II error?

A type I error occurs when a true null hypothesis has been rejected. Type II error on the other hand happens when a we fail to reject a false null hypothesis.

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