I'm not sure how exactly you wanted this question to be answered. You're either talking about the symmetry where animals would have two legs or two arms for example and thus producing a pair of each muscle on both sides of the body, or you're refering to the development of agonistic and antaonistic muscles where each of them served a different purpose; either extending or contracting.
<span>Conjugation in which two cells temporarily combine in order to transfer genetic materials. After combination they then divide again, allowing of the information to pass and replace the previous members of the population.</span>
It was the theory that an organism could form from something such as mud for an example.
A system that allows pharmacists to automatically substitute with certain pharmacologic or therapeutic alternatives without calling the prescriber each time is known as a Therapeutic interchange.
Therapeutic interchange is the practice of replacing, with the prescribing practitioner's approval, a prescription medication originally prescribed for a patient with an alternative prescription medication. Therapeutic drug monitoring (TDM) is testing that measures the amount of certain medicines in your blood. It is done to make sure the amount of medicine you are taking is both safe and effective.
Therapeutic drug monitoring helps in designing patient-specific dosage regimen, it aids in enhancing the efficacy of drugs, to reduce the toxicity of drugs and for diagnostic purposes, by individualizing drug therapy.
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The answer is Glycerol
Hope this helps