A retailer maintains a database with four tables: Customers,…

A retailer maintains a database with four tables: Customers, DealershipInfo, SaleTransactions, and ProductList. The Entity Relationship Model (ERM) below illustrates the primary and foreign key relationships among these tables. In the diagram, a gold key indicates a table’s primary key, while a silver key denotes a foreign key. Customers can purchase multiple products, and each product can be bought by multiple customers. The SalesTransactions table serves as a ________  table that links these entities in a many-to-many relationship. Fill in the blank.  

 In lab you completed a muscle physiology experiment.  This…

 In lab you completed a muscle physiology experiment.  This is a sample screenshot of data collected during the muscle fatigue experiment.  Use it to answer the questions below. 1. Which fatigued more? The nerve or the muscle?    2.  What does this tell you about the role of the CNS in muscle activity (i.e. motivation, music,) and the  brain’s ability to continue working out? (resist fatigue)   3. How might exercising when fatigued play a role in injury?    4. List 2 specific causes of muscle fatigue.