Adaptation. An adaptation is a feature that is common in a population because it provides some improved function. Adaptations are well fitted to their function and are produced by natural selection. vestigial structure is a feature that was an adaptation for the organism's ancestor, but that evolved to be non-functional because the organism's environment changed. Fish species that live in completely dark caves have vestigial, non-functional eyes.
1 A nurse administering Botox in a mall on average costs $9-$12 per unit, or $200-$300 per area (with 20-30 units), which can run $200-$600 for a typical treatment. Treatments may be every 3 months. 2  A nurse administering Botox in a mall on average costs $9-$12 per unit, or $200-$300 per area (with 20-30 units), which can run $200-$600 for a typical treatment.
Prices will vary; we charge $10 to $12 per unit. Typically 0.01 cc of Botox is one unit of Botox. So, an average amount of Botox for frown lines is 25 units. If you receive 25 units, you will be receiving 0.25 cc of Botox. At $12 per unit, 25 units cost $300. Xeomin is made by the company that makes Radiesse.