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Best example of an adult that doesn't: Sea Squirt or Tunicate. The larvae have a notochord but the sessile adults do not.
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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.
Why are dugongs classified in the phylum chordata?
To answer the question in the simplest way, the manatee has a backbone.However, there is more to it than that, especially given that there are two invertebrate chordate groups - Urochordata (tunicates) and Cephalachordata (lancelets) - whose backbone is not in the form of actual vertebrae.As Chordates (or members of the phylum Chordata), manatees share the following characteristics:dorsal nerve cord which is a bundle of nerve fibres which runs down the back. It connects the brain with the lateral muscles and other organs.notochord which is a cartilaginous rod running underneath, and supporting, the nerve cord - in the case of the manatee, a spine.post-anal tail - an extension of the body past the anal opening. (This feature is not always present in some adult Chordates such as frogs and humans, but it is present in the manatee.)Pharyngeal pouches - Chordates, at some stage of their life, have pharyngeal grooves and pouches that develop into other essential parts of their anatomy.
Difference between chordates and vertebrates?
humans are vertebrates as hey have the vertebral column(to be more specific the notochord). u can feel your vertebral column by placing your hand on your back.the bony structure that seems to divide your back into two equal halves is nothing but your vertebral column.
Which organism in the pond ecosystem completely changes its physical features and food source when it becomes an adult?
Trout
What are the characteristics of the phylum Chordata?
There are three subphylums in Chordata. Two of them are invertebrates - Urochordata (tunicates) and Cephalachordata (lancelets), while the third is Vertebrata (vertebrates). This phylum includes all animals which have a hollow dorsal nerve cord and a notochord at some stage during their development. In the case of vertebrates, the notochord is present in the embryo, and develops into the vertebral body. In the tunicates, the adult form no longer has the notochord. Another characteristic they share is that, at some stage during their lives, they have pharyngeal grooves and pouches that develop into other essential parts of their anatomy (many textbooks still state that all vertebrate embryos have gill slits, but there has been a great deal of development in the science of embryology to refute this claim). Chordates all have a post-anal tail, which means an extension of the notochord and nerve chord behind the anus, although this feature is no longer present in the mature forms of some creatures such as frogs, and some mammals such as people. Chordates also have a closed circulatory system, although not all Chordates have an actual heart like the vertebrate Chordates do. They have chevron shaped musculature; are deuterostomes, meaning they have two openings to the alimentary canal, and have three coelomic (body) cavities. They have segmentation which is seen in the arrangement of muscles and in the vertebral column.
All chordates are vertebrates?
Chordates include the vertebrates, or animals with backbones. However, not all chordates are vertebrates. Some chordates, such as the cephalochordates lack a spinal cord, and hence are not vertebrates. The term chordate does not refer to the spinal cord, but rather the notocord. This is a stiff but flexible rod that runs the length of an animal at some stage of its life, whether embryonic, or adult. Other essential chordate features include gills, tails, and a nerve cord. wish this helps... neon.crescent
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.
Is an animal with a backbone and gills but no notochord still a chordate?
No, an animal with a backbone and gills but no notochord would not be considered a chordate. Chordates are defined by the presence of a notochord at some stage of their development, along with a dorsal nerve cord, pharyngeal slits, and a post-anal tail.
Why does killer whales belong to chordata?
Killer whales belong to the phylum Chordata because they possess a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail at some point in their development, which are key characteristics of chordates. These features are present in the early stages of their development, even if they are not as visibly apparent in adult killer whales.
Which of the following chordates is most likely to look least like other chordates?
adult tunicate
What is found in all chordates and provides support in embryos and in some adult organisms?
Notochord
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 a whale in the Phylum Chordata?
Yes, whales are chordates. They are also vertebrates, meaning they have a skeletal system.However, there is more to it than that, especially given that there are two invertebrate chordate groups - Urochordata (tunicates) and Cephalachordata (lancelets) - whose backbone is not in the form of actual vertebrae.As Chordates (or members of the phylum Chordata), whales share the following characteristics:dorsal nerve cord which is a bundle of nerve fibres which runs down the back. It connects the brain with the lateral muscles and other organs.notochordwhich is a cartilaginous rod running underneath, and supporting, the nerve cord - in the case of the whale, a spine.post-anal tail - an extension of the body past the anal opening. (This feature is not always present in some adult Chordates such as frogs and humans, but it is present in the whale.)Pharyngeal pouches - Chordates, at some stage of their life, have pharyngeal grooves and pouches that develop into other essential parts of their anatomy.
Three aspects of early development of a snail a mollusk and a humana chordate?
The start out as very small. They will slowly begin to age and develop into the adult forms of their species.
Why is the whale shark in the phylum of chordata?
To answer the question in the simplest way, the giraffe has a backbone.However, there is more to it than that, especially given that there are two invertebrate chordate groups - Urochordata (tunicates) and Cephalachordata (lancelets) - whose backbone is not in the form of actual vertebrae.As Chordates (or members of the phylum Chordata), giraffes share the following characteristics:dorsal nerve cord which is a bundle of nerve fibres which runs down the back. It connects the brain with the lateral muscles and other organs.notochord which is a cartilaginous rod running underneath, and supporting, the nerve cord - in the case of the giraffe, a spine.post-anal tail - an extension of the body past the anal opening. (This feature is not always present in some adult Chordates such as frogs and humans, but it is present in the giraffe.)Pharyngeal pouches - Chordates, at some stage of their life, have pharyngeal grooves and pouches that develop into other essential parts of their anatomy.
What is the significance of Protochordates?
The name Protochordates literally means 'the first chordates.' The chordates include fish, amphibians, reptiles, birds and mammals. The protochordates fall into two broad groups or subphyla - the Urochordata and the Cephalochordata. Urochordata The urochordata includes the group known as the tunicates - animals whose free-swimming larvae have a notochord* and a nerve chord. The adults are sessile - that is to say they are anchored to one place on the Reef. CephalochordataCephalochordates, or lancelets, are fish-like animals that have a notochord and nerve chord along the entire length of their bodies and which persist all their lives. * A notochord is a an elongated cellular chord enclosed in a sheath, that forms the primitive skeleton of chordate embryos (including humans) and adult cephalochordates. The name Protochordates literally means 'the first chordates.' The chordates include fish, amphibians, reptiles, birds and mammals. The protochordates fall into two broad groups or subphyla - the Urochordata and the Cephalochordata. Urochordata The urochordata includes the group known as the tunicates - animals whose free-swimming larvae have a notochord* and a nerve chord. The adults are sessile - that is to say they are anchored to one place on the Reef. Cephalochordata Cephalochordates, or lancelets, are fish-like animals that have a notochord and nerve chord along the entire length of their bodies and which persist all their lives. * A notochord is a an elongated cellular chord enclosed in a sheath, that forms the primitive skeleton of chordate embryos (including humans) and adult cephalochordates.
Why is the cheetah in the Chordata phylum?
To answer the question in the simplest way, the cheetah has a backbone.However, there is more to it than that, especially given that there are two invertebrate chordate groups - Urochordata (tunicates) and Cephalachordata (lancelets) - whose backbone is not in the form of actual vertebrae.As Chordates (or members of the phylum Chordata), cheetahs share the following characteristics:dorsal nerve cord which is a bundle of nerve fibres which runs down the back. It connects the brain with the lateral muscles and other organs.notochord which is a cartilaginous rod running underneath, and supporting, the nerve cord - in the case of the cheetqh, a spine.post-anal tail - an extension of the body past the anal opening. (This feature is not always present in some adult Chordates such as frogs and humans, but it is present in the cheetah.)Pharyngeal pouches - Chordates, at some stage of their life, have pharyngeal grooves and pouches that develop into other essential parts of their anatomy.
