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.

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Definitions:

Ceiling Price

Ceiling price is a legally imposed maximum price on goods or services, above which transactions cannot legally occur, often implemented to prevent price gouging during shortages.

Maintenance

The upkeep and repair of machinery, equipment, and buildings to ensure their optimum working condition.

Shortage

A market condition occurring when the demand for a product or service exceeds the supply available at a specific price.

Equilibrium Level

The state of balance where demand equals supply in a market, resulting in an optimal distribution of resources without excess supply or demand.