Pat Owen is chair of the National Grizzly Society,which maintains a database of all grizzly bears within the United States.One table will store the name,birth date,and other characteristics of all of the grizzly bears that have been registered.Each grizzly bear is uniquely identified by a registration number.A second table will contain data that link each grizzly bear to its male and female parents by means of their registration numbers.The entities described by the second table are
A)grizzly bears.
B)parental relationships.
C)registration numbers.
D)names.

Question

Quizplus · Accepted Answer

The second table is specifically linking grizzly bears to their male and female parents, indicating that the entities described in this table are the parental relationships between the grizzly bears. The registration numbers may be used as foreign keys to link the tables, but they are not the main entities described in the second table. The names of the grizzly bears do not seem to be relevant to this second table.

Pat Owen Is Chair of the National Grizzly Society,which Maintains