Cephalochordata
There are three surviving subphylums of Chordata. The first, which branches off earliest, is called Urochordata and contains tunicates. The other two branches fork later, and are the Cephalochordata (amphioxus/lancelets) and Craniata (all vertebrates).
Phylum Aschelminthes
Chordata phylum
Phylum Chordata.
The phylum of housefly is Arthropoda.
There are three surviving subphylums of Chordata. The first, which branches off earliest, is called Urochordata and contains tunicates. The other two branches fork later, and are the Cephalochordata (amphioxus/lancelets) and Craniata (all vertebrates).
An amphioxus is a lancelet, particularly of the genus Branchiostoma.
An amphioxus is a lancelet, particularly of the genus Branchiostoma.
Amphioxus, also known as lancelets, are small, marine invertebrates that belong to the subphylum Cephalochordata. An immature amphioxus refers to the early developmental stages of these organisms, which exhibit key characteristics such as a notochord, dorsal nerve cord, and pharyngeal slits. These features are crucial for understanding the evolutionary link between invertebrates and vertebrates. Immature amphioxus play a significant role in developmental biology and evolutionary studies.
There are many more than three organisms of phylum Chordata. There are three subphylums in Chordata. Two of them are invertebrates - Urochordata (tunicates) and Cephalachordata (lancelets), while the third is Vertebrata (vertebrates).
Echinoderms are the phylum. The phylum is Echinodermata Echinoderms are the phylum. The phylum is Echinodermata Echinoderms are the phylum. The phylum is Echinodermata
Amphioxus has a wheel organ which creates a current. This current carries water into the mouth, where food is trapped in the pharynx by cilia and mucus. Excess water is filtered through the pharyngeal slits to the atrium and out the atriopore.
Amphioxus, a type of cephalochordate, is not as adept at swimming as many aquarium fish. While they can move through water using a simple lateral undulation, their swimming capability is limited compared to the more advanced muscle structures and streamlined bodies of fish. Fish possess fins and a more efficient propulsion mechanism, allowing for greater agility and speed in the water. Thus, aquarium fish generally outperform amphioxus in swimming ability.
Branchiostoma lanceolatum, also known as the European lancelet, is an example of a lancelet. These marine animals belong to the phylum Chordata and closely resemble the common ancestors of vertebrates. They are typically found in sandy coastal areas where they burrow in the sediment.
The toucans phylum is phylum Chordata.
Phylum Aschelminthes
phylum