0
the notochord provides support in early embryonic stages and the evolutionary ancestors of vertebrates, a 'proper backbone' is made up of the neural tube and the discs in between each spine segment are derived from the notochord.
Wiki User
∙ 12y ago
A notochord is a flexible rod-like structure found in some chordates, providing support, while a proper backbone is a more complex structure made of vertebrae. Backbones have more specialized functions, such as protecting the spinal cord and allowing for more precise movement. Notochords are often found in embryonic stages and may be replaced by a backbone during development.
Add your answer:
Earn +20 pts
What phylum do animals with a backbone belong to?
Animals with a backbone belong to the phylum Chordata. This phylum includes vertebrates such as fish, amphibians, reptiles, birds, and mammals, which all possess a notochord or backbone at some stage in their development.
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.
What is the phylum chordata?
Phylum Chordata is a group of animals characterized by the presence of a notochord, a hollow nerve cord, pharyngeal slits, and a post-anal tail at some stage in their life cycle. This phylum includes vertebrates and a few closely related invertebrates.
What is the opposite of chordata?
The opposite of chordata is invertebrates. Invertebrates are animals without a backbone, whereas chordates are animals with a notochord or vertebral column.
Which phyla possesses members that have a notochord?
Chordata is the phylum that possesses members with a notochord, which is a flexible rod-like structure that provides support. This phylum includes animals such as mammals, birds, reptiles, amphibians, and fish.
In amphibians what develops into a backbone?
In embryos of amphibians the notochord develops into the backbone. The notochord is comprised of cells and defines the primitive axis of the embryo.
What is the embryonic structure that is usually replaced by the backbone?
notochord
What phylum do animals with a backbone belong to?
Animals with a backbone belong to the phylum Chordata. This phylum includes vertebrates such as fish, amphibians, reptiles, birds, and mammals, which all possess a notochord or backbone at some stage in their development.
Does a phylum chordata have a backbone?
Some members of the phylum Chordata, such as sea squirts, don't have a backbone, but have what's called a notochord, a precursor to a true backbone.
Do cats exhibit a notochord at some stage of its development?
You did. Your backbone formed on the notochord. There are some fish, the lamprey, I think, that retain a notochord, These animals are chordates but not vertebrates.
What are the function of the backbone?
Provide structure and strength for locomotion and protection for the notochord/spinal cord.
Do tunicates keep the nerve cord notochord and postanal tail throughout their lives?
Tunicates, even though they do not have a backbone have 4 spinal features usually seen with a backbone. As an adult, the tunicate no longer has the nerve cord notochord and postanal tail.
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.
What are the 2 functions of the backbone?
Provide structure and strength for locomotion and protection for the notochord/spinal cord.
Flexible rod that supports an animal's back?
I believe it's a spine or backbone.
Which phlylae is the goat in?
The goat is in the phylum Chordata, which means that it is a chordate. A chordate is an animal that had a notochord at some time in it's life. A notochord is a flexible, primitive structure, sort of like a primitive backbone.
What makes an invertebarte an invertebarte?
An animal that would be defined an invertebrate would be any animal lacking a backbone or a notochord.
