I think metastasis is a secondary tumor in a different part of the body that arises from a cells from the primary tumor. Metastasis means the spread of cancer cells. Cancer cells may break away from a primary tumor and enter the bloodstream or lymphatic system and is then spread to other parts of the body.
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Enzymes are also sensitive to pH . Changing the pH of its surroundings will also change the shape of the active site of an enzyme.
Experiments are carried out to predict the fact. Normally, an experiment is constructed to be able to explain some kind of causation. Experimental research is important to people, it helps us to improve our everyday lives. It is basically to conduct a task (experiment) to get the results.
The correct answer is this one: "A.When actin filaments are pulled toward the center of the sarcomere, the fiber shortens." The statement that accurately describes the way in which a muscle moves is when actin filaments are pulled toward the center of the sarcomere, the <span>fiber shortens</span>