Sea Stars Are in the Phylum Echinoderms

question 129

Multiple Choice

Sea stars are in the phylum Echinoderms. From the list provided, select the characteristics that are observed in this phylum.

• A) They prey on molluscs.
• B) Most have radial symmetry.
• C) They are pseudoceolomates.
• D) They have an incomplete nervous system.

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Definitions:

Price Ceiling

A legally established maximum price that can be charged for a good or service, usually set below the equilibrium price to make goods more affordable.

Excess Demand

A situation where the quantity demanded of a good exceeds the quantity supplied at a given price, often leading to upward pressure on prices.

Equilibrium Quantity

The quantity of goods or services at which demand equals supply, leading to a stable market condition.

Minimum Wage

The lowest legal wage that can be paid to most workers.