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Create a 2×2 table for the study. Be precise and explicit in labelling all appropriate cells. Click on the three dots on the top right and insert a 4×4 table so you can label all columns and rows.

The American Cancer Society was looking into the relationship between infection with H. pylori bacteria, which causes stomach ulcers and stomach cancer. Researchers selected 250 individuals between the ages of 50 and 65 who had stomach cancer, and another 250 individuals between the ages of 50 and 65 who did not have stomach cancer, to participate in a study. The participants were then asked whether they had a history of H. pylori infection in the 5 years before they were diagnosed with stomach cancer. Of the those with stomach cancer, 114 reported a history of H. pylori infection. Of the those without stomach cancer, 203 reported that they did not have a history of H. pylori infection.    What type of study is this? How do you know?

Bonus pts I will add any bonus points from the Bonus Muscle Action Review Quiz   now: ______

When a muscle cell generates tension but does not shorten or lengthen, a(n) ______ contraction occurs.

The arrow is pointing to the Red Motor unit which controls ____ muscle fibers. 

Which characteristic of muscle means that the muscle can be stretched past its resting length?

Which protein is found in the   thin  myofilament?

Letter A    indicates:  

Which will shorten in length during a contraction?

Multiple Select Question  /  No partial credit Troponin binds to _____,    ______ and  ______.                         Select 3 from this list: