In Sea Urchin Embryos,mesenchyme Cells Are Able to Elongate the Archenteron

question 37

Multiple Choice

In sea urchin embryos,mesenchyme cells are able to elongate the archenteron by using

• A) mitotic spindles.
• B) lobopodia (lobular cell extensions).
• C) filopodia (thin extensions of cell).
• D) myofibers.
• E) centrioles.

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Definitions:

Marginal Cost

The increase in total cost that arises from producing one additional unit of a product or service.

Profit Maximized

The point at which a firm achieves the highest profit possible, considering the level of output and cost of production.

Competitive Price-Taker

An entity in a market that has no control over the prices at which its products are sold, typically due to intense competition and product uniformity.

Marginal Cost

The cost of producing one additional unit of a product.