The Decline of Brachiopods and Stalked Crinoids, Which Began During

question 7

Multiple Choice

The decline of brachiopods and stalked crinoids, which began during Cretaceous, was probably the result of

• A) hiding in the crevasses in coral reefs during the day and only coming out at night.
• B) diversification of modern predators, including crabs, fishes, and snails.
• C) the ability to swim or to burrow actively as a defense against predation.
• D) defensive spines or unusually heavy protective shells.

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Definitions:

Direct Materials Purchases

The total cost of raw materials bought that are directly incorporated into a finished product.

Ending Direct Materials

Ending Direct Materials refers to the value of raw materials that are still available for use in production at the end of an accounting period.

Required Production

Required production is the quantity of goods a company needs to produce in a given period to meet customer demand and maintain inventory levels.

Direct Labor

Labor costs directly associated with the manufacture of products or provision of services, such as wages for assembly line workers.