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Circular muscles - reduce the diameter of the gut when they contract Longitudinal muscles - which reduce the length of the gut when they contract The muscles work together to produce wave-like contractions. ...

The answer is the colon (large intestine) The Duodenum is where food is mixed with digestive enzymes and bile. In the ileum, digested food is absorbed into the blood and lymph. Therefore water is reabsorbed ...

A gene is a section of DNA (can explain DNA if necessary). Genes are responsible for making the different proteins that carry out different functions in our body.They can be inherited, passed on to future ge...

The key to being able to answer this question is having good memory tricks in place. In this case, connecting lipase with lipid in your mind will help you recall that lipases digest fats and so that cannot b...

Phospholipids are arranged in a bilayer (a double layer). They have hydrophobic tailss (made of fatty acids) and hydrophilic heads (made of a phosphate group). The hydrophilic heads are to the outside and th...