The Development of Eyes Has Been Intensively Studied

question 7

Multiple Choice

The development of eyes has been intensively studied.Eyes of vertebrates and insects are

• A)analogous (homoplastic),not homologous,yet the same Pax6 gene initiates development.
• B)homologous,not analogous (homoplastic),yet the same Pax6 gene initiates development.
• C)analogous (homoplastic),not homologous,and development is initiated by two different genes,Pax6 and Pax7.
• D)homologous,not analogous (homoplastic),and development is initiated by two different genes,Pax6 and Pax7.
• E)completely unrelated,and development is initiated by a whole suite of different genes in different species.

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Definitions:

Total Costs

The sum of all expenses incurred by a business in producing goods or services, including fixed and variable costs.

Prime Cost

Direct materials cost plus direct labor cost.

Cost Of Goods Manufactured

The total expense incurred to produce goods over a specific period, including labor, materials, and overhead.

Gross Margin

The difference between sales revenue and the cost of goods sold, indicating the financial health of a company's core activities.