Which of the Following Was Probably the Least Important Factor

question 12

Multiple Choice

Which of the following was probably the least important factor in bringing about the Cambrian explosion?

• A)the emergence of predator-prey relationships among animals
• B)the accumulation of sufficient atmospheric oxygen to support the more active metabolism of mobile animals
• C)the movement of animals onto land
• D)the origin of Hox genes and other genetic changes affecting the regulation of developmental genes

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Definitions:

Income

The financial gain that an individual, business, or economy receives, usually in the form of money or other valuables, from various sources within a specified period.

Savings

The portion of income not spent on current consumption, often put aside for future use or investment.

Business Firms

Organizations engaged in commercial, industrial, or professional activities, typically structured as partnerships, sole proprietorships, or corporations.

Corporations

Legal entities that are separate from their owners, with the right to own property, enter contracts, and engage in business.