3 Americans
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Answer:
food spoilage
Explanation:
Food contamination is when food is contaminated with microorganisms or substances and eating it could result in food borne disease. Food spoilage is any undesired change in the natural color, taste or texture of food items that makes it unfit for consumption because it has lost its quality and nutritional value.
The muscular system is the organ system that is composed of tissue and can contract and relax.
Answer:
d. method of studying
Explanation:
independent variables are what affects the dependent variable. the outcome that you are looking for (test performance) is the dependent variable. what affects the test performance is the change in method of studying, so that is the independent variable.
