Which Two Animal Groups Are Distinguished from Each Other by the Number

question 66

Multiple Choice

Which two animal groups are distinguished from each other by the number of embryonic cell layers they have?

• A) Bilaterians and cnidarians
• B) Ctenophores and cnidarians
• C) Demosponges and glass sponges
• D) Protostomes and deuterostomes
• E) Echinoderms and hemichordates

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Definitions:

Supply Curve

A graphical representation showing the relationship between the price of a good and the quantity of the good that suppliers are willing to sell at different prices, typically upward sloping.

Income

Money received, especially on a regular basis, for work, through investments, or from any other source, used to acquire goods and services.

Quantity Demanded

The total amount of a good or service that consumers are willing to purchase at a given price over a specific period.

Demand

The inclination and capability of buyers to acquire products and services at specified prices.