Silvina A. Montrul. Many heritage speakers (bilinguals in a minority language context) turn to the second language (L2) classroom to expand their knowledge of the heritage language. Critical questions arise as to how their linguistic knowledge compares to that of post puberty L2 learners.
Fundamental Analysis: A method used to evaluate a tradable asset by attempting to determine its intrinsic value. This involves the broad study of markets and analysis of the overall state of economies, production, and employment.
The main difference is quantity is something like length, while unit is a particular measure like meter. Fundamental quantities are a set of orthogonal units which all other quantities(derived) can be based on. For instance speed can be derived from length divided by time. However, time can't be derived from any other.