Why does food need to be digested?
Food needs to be digested so that it can be broken down into smaller molecules, such as nutrients and sugars, which the body's cells can then absorb and use for energy, growth, and repair.
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What change needs to be done to correct the diagram showing food moving through the digestive system?
What is peristalsis and where does it occur?
Which statements correctly describe the digestive system? Select four options.Food is cut into pieces in the mouth.Food becomes dry in the mouth.Proteins are broken down in the stomach.Carbohydrates are first broken down in the stomach.Food becomes mostly solid in the large intestine.Fat is broken down into smaller droplets in the small intestine.
What do the digestive and excretory systems have in common?
In the excretory system, where does the waste material in the body come from and why does the body need to get rid of these waste materials?
The cells of the body produce waste materials. The body needs to get rid of these waste materials because they can make us sick. Getting rid of this waste keeps us healthy.
Identify the functions of the labeled parts. A: B: C: D:
Which processes happen in the kidney? Select three options.
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