How do you tell the age of a shark? Itâs not easy. Because they shed their teeth so often, you canât measure the growth rings in them to determine age. The vertebrae have growth rings too, but they arenât added at a uniform rate, so researchers inject marker chemicals to captured sharks to provide reference samples.
An acronym is an abbreviation, used as a word, which is formed from the initial components in a phrase or a word. Usually these components are individual letters (as in NATO or laser) or parts of words or names (as in Benelux).ords derived from an acronym by affixing are typically expressed in mixed case, so the root acronym is clear. For example, pre-WWII politics, post-NATO world, DNAase. In some cases a derived acronym may also be expressed in mixed case. For example, messenger RNA and transfer RNA become mRNA and tRNA.
An acronym is a word or name formed as an abbreviation from the initial components in a phrase or a word, usually individual letters and sometimes syllables. There are no universal standards of the multiple names for such abbreviations and of their orthographic styling. In English and most other languages, such abbreviations historically had limited use, but they became much more common in the 20th century. Acronyms are a type of word formation process, and they are viewed as a subtype of blendi