They are:
a. a dorsal, hollow nerve chord
b. a notochord
c. pharyngeal gill slits
d. and a post-anal tail
chordate phylum
that
Being 'chordate' means that the animal has a backbone.
The Roman theatres were heavily inspired by the architecture of the Greeks. There are several characteristics of Roman theatres. These characteristics the foundations, the Roman concrete construction, and the semi-circular design.
I do not know to be honest, sorry.
The main characteristic is that they have many cells.
Sea tunicates are considered chordates for three main reasons: First, they possess a notochord, a flexible rod that provides structural support during their larval stage. Second, they exhibit a dorsal nerve cord, which is a characteristic feature of chordates. Finally, they have pharyngeal slits at some stage of their development, which are indicative of the chordate lineage. These traits, although primarily present in their larval form, align them with the broader characteristics defining chordates.
The defining characteristic of a main sequence star burns hydrogen to helium in its core.
no
Adult tunicates exhibit chordate affinities through the presence of a notochord in their larval stage, which is a defining characteristic of chordates. In larval tunicates, the notochord is prominent, along with a dorsal nerve cord and pharyngeal slits, which are features shared with other chordates. Although adult tunicates lose many of these traits and become sessile, they retain a structure called the tunic, which reflects their evolutionary connection to the chordate lineage. Overall, the larval form displays the key chordate features, while the adult form highlights the evolutionary adaptations of tunicates.
Chordate
Chordate