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Answer:</h2>
The statement that best describes cancer cells is,
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<h3> they are not regulated by contact inhibition".</h3>
Cancer is a fatal disease which includes the uncontrollable increase of cancer cells.
These cancerous cells reproduce at abnormal rates.
There are various kinds of cancer like breast cancer, ovarian cancer, skin cancer and so on.
An enzyme known as amylase is found ins the saliva of humans. This enzyme helps to begin the process of digesting starch molecules in the foods we eat. The best description of how enzymes like amylase help in the process of digestion would be that Amylase is a catalyst that speeds up the chemical process of breaking down food molecules.
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).
I believe the answer is...a change in allele frequency over many generations!
Hope this helps!