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Chapter 32 Unit

QuestionAnswer
An animal whose mouth develops from the blastrophore is called a? Protostome.
Echinoderms share all of the following characteristics except a? Notochord.
The adult tunicate develops a tough sack around its body called a? Tunic.
The endoskeleton of chordates allows them to? All of the above.
Chordates are characterized by all of the following except? Radial symmetry.
Sea lilies and feather stars are unlike all living echinoderms because their mouth? Is located on the upper surface.
The water vascular system of echinoderms functions as a? All of the above.
Deuterstroms include all of the following except? Arthropods.
Animals that have their body parts arranged around a central point are said to be? Radial symmetrical.
Chordate characteristics can be observed in? lancelets and tunicates.
Pedicellaria.? All of the above.
Waste that accumulate in skin gills of echinoderms are? Released into the surrounding water.
The first deuterostomes? evolved more than 65 million years ago.
All though the two feet of echinoderms serve to move them across the sea floor, two feet also? aid in gas exchange and weight excretion.
Chordates tend to grow larger and move more quickly than other animals because they? have an endoskeleton with muscles attached to it.
An invertebrate chordates are so named because they have a? notochord but no backbone.
During embryonic development invertebrates, the notochord is replaced by a? vertebral column.
The structure labeled A is a? dorsal never chord.
The organism in the figure above is an ? invertebrate chordate.
A sea star can use its ___ to pull a valve open. Two feet.
The majority of chordate species have a ____. Backbone.
The word deuterostone comes from the Greek words deuteros meaning _____, and stoma meaning ____. Second and mouth.
The structures that develop from the BLASTRAPHORE define an organism as being either a protosome or a deuterostome. True.
Echinoderms and CHORDATES are both deuterostomes. They are also both radiology symmetrical. False.
In most echinoderms the OSSICLES bear spines that project upward through the skin. True.
Most chordates are VERTEBRATES. True.
The evolution of an ENDOSKELETON was important to the evolution of vertebrates. True.
Created by: ava-barnhill
 

 



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