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What functioned first does a chordate pharyngeal slits appear to have?
Chordate pharyngeal slits appear to have functioned first as suspension-feeding devices.
Does the thymus develop from the jugular lymph sacs the retroperitoneal lymph sac the posterior lymph sacs the mesenchymal cells or third pharyngeal pouch?
the third pharyngeal pouch
What Animal that has notochord a nerve cord and pharyngeal pouches at some time during its development?
Chordate
What are the characteristics of nonvertebrate chordate?
Chordates are the organisms that have a rod like cartilagenous structure called notochord which gives rise to nervous system. These have pharyngeal gill slits. Nonchordates are the organisms that do not have a notochord. These do not have pharyngeal gill slits.
What is the main characteristic of chordate?
They are: a. a dorsal, hollow nerve chord b. a notochord c. pharyngeal gill slits d. and a post-anal tail
What structures must be present at at least some stage of development for an organism to be considered a chordate?
The notochord, an endostyle, pharyngeal slits and a post-anal tail
Are perch in the phylum chordate?
Yes. Perch are in the Phylum Chordata as they exhibit the four major characteristics of a chordate: a notochord, pharyngeal gill slits, a hollow dorsal nerve cord, as well as a post anal tail.
You could recognize an adult sea squirt as a chordate by its?
An adult sea squirt has an endostyle and pharyngeal slits which are two of the five hallmark characteristics of chordates.
Which subphylum retains all chordate characteristics even in the adult forms?
The subphylum Vertebrata retains all chordate characteristics even in the adult forms. Vertebrates possess a notochord, dorsal nerve cord, post-anal tail, and pharyngeal slits or pouches throughout their lives.
Is snake a chordate?
Yes, snakes are chordates. They have postanal tails, pharyngeal gills or slits, a notochord that allows for muscle support and attachment, and a dorsal, hollow nerve tail that leads to a distinct brain.
What is the definition of chordate?
Chordates are animals in phylum Chordata, like reptiles, mammals, and birds. They have postanal tails, pharyngeal gills or slits, a notochord that allows for muscle support and attachment, and a dorsal, hollow nerve tail.
When are the four chordate characteristics found in Class Reptilaembryo or adult?
1. A notochord that allows for muscle attachment and support2. A dorsal, hollow nerve tail that leads to a distinct brain3. Pharyngeal gills or slits4. Postanal tail
