Question 20 (10 points) When you finish working with chemicals, biological specimens, and other lab substances, always
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wipe your hands on a towel.
wipe your hands on your clothes.
treat your hands with skin lotion.
wash your hands thoroughly with soap and water.
Question 21 (10 points)
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My answer to the question is "wash your hand thoroughly with soap and water".

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.