i am not an expert in health but i think it is B
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Answer: Before every exercise, you should always do a warm up. A warm up is when you start at a low level of intensity before an exercise. Doing that helps minimize injury and it follows the principle of progression. After an exercise, you should always do a cool down. A cool down is when you go from a high intensity exercise, to a low intensity exercise. Cool down also prevent injury and stabilize your muscle. In conclusion, cool downs and warm ups are very important because it helps prevent injuries.
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You should always clean and sanitize surfaces and utensils before every use as bacteria and germs live on surfaces. It is especially important if you are eating off it like a spoon or fork.
Answer:
B. both internal and external factors
Explanation:
Answer:
1. Cell Nucleus
2. Ribosomes
3. DNA has all the ingredients to make up your body systems and the genes that form your traits from you parents.
Explanation:
