Question: What Is a Controlled Experiment? One of the most common types of experiment is a controlled experiment. Here is a look at what a controlled experiment is and why this type of experiment is so popular in science. Answer: A controlled experiment is one in which everything is held constant except for one variable.
Symptoms of inflammatory bowel disease (IBD), including ulcerative colitis and Crohnâs disease, primarily affect the digestive tract and include appetite loss, diarrhea, weight loss, rectal bleeding, nausea, and abdominal cramping.
There are many conditions that can cause nausea. 1  Some of the more common ones include: 2  Tummy bugs (gastroenteritis). 3  Migraine. 4  Pregnancy. 5  Anxiety. 6  Ear problems. 7  Motion sickness (travel sickness - feeling sick in a car, bus, boat, train or plane). Other rare causes of nausea include: Growths (tumours) in the brain or gut. Infections of the brain (for example, meningitis). Medicines can cause nausea as a side-effect: Some medicines, when taken in normal doses, may cause nausea - for example: