They are more likely and have been consistently measured to smoke more than other ethnic groups.
Answer:
Both statements are true.
Explanation:
A nonabrasive dentifrice is indicated in order to to prevent scratching of gold prostheses and acrylic. It is indicated to prevent the possibility of abrasion when pontic or crown facings are made of acrylic, when the gold of the partial denture is highly polished and could be scratched, and when areas of root exposure are on abutment teeth.
For caries protection for remaining tooth structures, fluoride dentifrice is recommended as it is important for protection of remaining tooth surfaces, particularly exposed cementum.
Due to acidity Acidulated Fluoride Preparation is contraindicated in an oral cavity with porcelain and composite restorations.
Strip mining is taking away the surface, literally scraping the surface away to remove coal.
In the given case, if the trait is favorable, it will be passed on to the offspring over many generations, leading to a population of darker squirrels.
The mutation refers to the sudden modification in the DNA's nucleotide sequence. Some of the mutations are harmful, while some offer survival benefits to the species. The mutations that offer the adaptive or survival advantages are favored by natural selection and the species with this kind of mutations seem to reproduce and survive more in comparison to the species with no mutation.
Therefore, if the darker color fur would be beneficial to the squirrel, for example, it would be tough for the predators to locate the squirrel with darker fur, then they seem to survive more and the traits keep on passing from one generation to another.