Sea Urchins Attach to Rocks and Use Specialized Mouth Structures

question 32

Short Answer

Sea urchins attach to rocks and use specialized mouth structures to feed.They have an evolutionary advantage over unicellular planktonic protozoa floating by in that they can more effectively _______ on other organisms and resist the forces of waves.

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Definitions:

Standard Cost System

An accounting system that uses predetermined costs for products or services to compare against actual costs for performance evaluation.

Actual Results

The real outcomes or final figures that have been achieved by a business after a specific period, which can be compared against forecasts or budgets.

Materials Quantity Variance

An analysis used to assess the discrepancy between the expected amount of materials and the actual amount used, based on standard costs, providing insight into manufacturing efficiency.

Quantity Standard

The expected or established amount of materials, labor, or overhead that should be used for a unit of production or a specific task.