All of the following are shared characteristics of chordates EXCEPT Select one:

Question

All of the following are shared characteristics of chordates EXCEPT Select one: O a. pharyngeal gill slits. b. post-anal tail. c. notochord. O d. dorsal, hollow nerve cord O e. four-chambered heart. Spemann and Mangold determined that this area of a developing embryo was the primary inducer during embryonic development. Select one: 0 a. archenteron b. neural tube O c. dorsal lip of the blastopore O d. animal pole Select the BEST description of a chordate? Select one: O a. An organism that has a spinal cord at some point in its embryological development b. An organism that has a spinal cord throughout its embryological development. O c. An organism that has a notochord at some point in its embryological development. Od. An organism that has a notochord throughout its embryological development.

Explanation / Answer

1. E. 4 chambered heart eg fish have 2 chambered heart.

2. A. Archenton

3. C. An organism that has a notochord at some point in its embryological development.

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