The Following Statements May Apply Only Cnidarians, Only to Lophotrochozoans

question 46

Multiple Choice

The following statements may apply only cnidarians, only to lophotrochozoans, or to both. Which of the following statements applies only to lophotrochozoans?

• A) Organisms go through both bilateral and radial stages of development.
• B) Most are found in shallow coastal marine environments.
• C) There are two tissue layers: an outer epidermis and inner gastrodermis.
• D) Stinging cells contain a threadlike nematocyst released to capture prey.
• E) A jellylike mesoglea contains cells that form a nerve net throughout the body.

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Definitions:

Numerator

The top number in a fraction, representing the number of parts considered out of the whole.

Conversion Formula

A mathematical equation used to convert a quantity expressed in one set of units to another set of units.

Milligrams

A unit of mass in the metric system equal to one-thousandth of a gram.