When Is the Root-Shoot Axis Established in the Flowering Plant

question 31

Multiple Choice

When is the root-shoot axis established in the flowering plant Arabidopsis?

• A) within hours after the seed germinates
• B) shortly after the eight-cell embryo stage
• C) during the torpedo stage of embryonic development
• D) by the first cell division of the embryo

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Purely Competitive Market

A market structure characterized by many buyers and sellers, homogeneous products, and no barriers to entry or exit, leading to minimal market power for individual firms.

Long Run Adjustments

Changes made by firms or economies over time to adapt to market conditions, wherein all inputs can be varied and no factors are fixed.

Industry Profits

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An industry in which the costs of production increase as the industry output increases, often due to the inputs' prices rising as demand for them grows.