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.
Therefore, the diagnosis of the cause of prolonged nausea may not be easy. All stimuli that cause nausea work via the vomiting center in the brain, which gives rise to the sensation of nausea and coordinates the physical act of vomiting. Nausea symptoms are frequently difficult for people to describe. Nausea symptoms are not painful but very uncomfortable feelings that are felt in the chest, upper abdomen, or back of the throat. Nausea can also be associated with. 1  headache, 2  vomiting, 3  dizziness, 4  lightheadedness, 5  diarrhea, 6  abdominal pain, 7  a general feeling of being sick to one's stomach.