Class Osteichthyes comprises bony fishes under the superclass Pisces. Also Check: What Replaces Most Of The Cartilages In Vertebrate Embryos?... View Article
Cyclostomes are classified under the division Agnatha because they lack jaws. Also Check: What Replaces Most Of The Cartilages In Vertebrate... View Article
Cephalochordates have a notochord extending from the head to the tail region and persist throughout their life. They also have a dorsal nerve... View Article
Agnatha has rows of teeth in their round muscular mouth. They lack jaws. Also Check: What Replaces Most Of The Cartilages In Vertebrate... View Article
No, not all chordates have a 4-chambered heart. Birds and Mammals have a 4-chambered heart. Also Check: What Replaces Most Of The Cartilages... View Article
No, the division Agnatha lacks jaw, i.e. jawless fish, e.g. Cyclostomata- Petromyzon, Myxine Also Check: What Replaces Most Of The Cartilages... View Article
Hemichordates have a rudimentary notochord only in the collar region called stomochord. Also Check: What Replaces Most Of The Cartilages In... View Article
Cephalochordata is a subphylum under the phylum Chordata. Also Check: What Replaces Most Of The Cartilages In Vertebrate Embryos? Why are... View Article
Atriopore is the opening in urochordates from where water is removed from the body. Also Check: What Replaces Most Of The Cartilages In... View Article
Urochordates are also called tunicates. Examples of Urochordata are Ascidia, Salpa, Doliolum, etc. They are exclusively marine. Also Check:... View Article
Urochordata and Cephalochordata are called protochordate as they are the primitive or ancestral forms of chordates. Also Check: What Replaces... View Article
Yes, the notochord is present in Urochordata but only in the larval tail. Also Check: What Replaces Most Of The Cartilages In Vertebrate... View Article
Pharyngeal slits help in filter-feeding and respiration. Also Check: What Replaces Most Of The Cartilages In Vertebrate Embryos? Why are... View Article
Notochord is replaced by the vertebral column in humans. Also Check: What Replaces Most Of The Cartilages In Vertebrate Embryos? Why are... View Article
In humans, the notochord is present during the embryonic period. Also Check: What Replaces Most Of The Cartilages In Vertebrate Embryos?... View Article
Animals are referred to as vertebrates because of the presence of the vertebral column. Also Check: What Replaces Most Of The Cartilages In... View Article
No, Hemichordata is the separate phylum, whereas Protochordates comprises the subphylum Urochordata and Cephalochordata under the phylum... View Article
