Difference between revisions of "Translations:AY Honors/Shells/Answer Key/15/en"

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Message definition (AY Honors/Shells/Answer Key)

The radical structure of the bivalves affects their behavior in several ways. the most significant is the use of the closely-fitting valves as a defense against predation and, in intertidal species such as mussels, drying out. The entire animal can be contained within the shell, which is held shut by the powerful adductor muscles. This defense is difficult to overcome except by specialist predators such as the Starfish and Oyster Catcher.
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===Gastropods===
[[Image:Cypraea chinensis with partially extended mantle.jpg|thumb|''Cypraea chinensis'', a species of Gastropod]]
The gastropods, also previously known as gasteropods, or univalves, and more commonly known as snails and slugs, are the largest and most successful class of mollusks, with 60,000-75,000 known living species. This class of animals is second only to insects in its size and diversity.

The radical structure of the bivalves affects their behavior in several ways. the most significant is the use of the closely-fitting valves as a defense against predation and, in intertidal species such as mussels, drying out. The entire animal can be contained within the shell, which is held shut by the powerful adductor muscles. This defense is difficult to overcome except by specialist predators such as the Starfish and Oyster Catcher.
<br style="clear:both">
===Gastropods===
[[Image:Cypraea chinensis with partially extended mantle.jpg|thumb|''Cypraea chinensis'', a species of Gastropod]]
The gastropods, also previously known as gasteropods, or univalves, and more commonly known as snails and slugs, are the largest and most successful class of mollusks, with 60,000-75,000 known living species. This class of animals is second only to insects in its size and diversity.

The radical structure of the bivalves affects their behavior in several ways. the most significant is the use of the closely-fitting valves as a defense against predation and, in intertidal species such as mussels, drying out. The entire animal can be contained within the shell, which is held shut by the powerful adductor muscles. This defense is difficult to overcome except by specialist predators such as the Starfish and Oyster Catcher.

Gastropods

Cypraea chinensis, a species of Gastropod

The gastropods, also previously known as gasteropods, or univalves, and more commonly known as snails and slugs, are the largest and most successful class of mollusks, with 60,000-75,000 known living species. This class of animals is second only to insects in its size and diversity.