The Key Evolutionary Development Seen for the First Time in the Sponges

question 18

Multiple Choice

The key evolutionary development seen for the first time in the sponges is that of:

• A)a complete digestive tract
• B)major organ systems
• C)body symmetry
• D)multicellularity

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Definitions:

Fixed Expense

Costs that do not change with the level of goods or services produced by the business, such as rent or salaries.

Break-even Point

The point at which total revenue equals total costs, resulting in no profit and no loss for the business.

Sales Dollars

This term represents the total amount of revenue a company generates from the sale of its goods or services, expressed in dollars.

Operating Leverage

A measure of how a company's operating income responds to changes in sales volume, highlighting the impact of fixed costs on profitability.