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What is the definition of notochord?
Notochord- a flexible rod that supports a chordates back.notochord is a stuff rod of conective tissue.it is present in the mid_dorsal region of the embryo.in the lower chordates .the notochord is present throughout of life but in vertebrates .the vertebral column or bacjbone replaces it.
Does a hagfish have a notochord present it's entire life?
Yes.
Do lions have a notochord?
Yes, lions, like all vertebrates, have a notochord. The notochord is a flexible rod-like structure present in the early stages of embryonic development that provides support for the developing spine.
The firm flexible rod found in the dorsal area in chordates?
The firm flexible rod found in the dorsal area of chordates is called the notochord. It provides support and structure to the body, and is present during early development in all chordates. In most vertebrates, including humans, the notochord is eventually replaced by the vertebral column.
Do chondrichthyes have bones?
No, chondrichthyes are fish that have skeletons made out of cartilage instead of bone.
Why are dugongs Phylum Cordata?
Dugongs are Phylum Chordata because they possess a notochord at some point in their development, which is a defining characteristic of the phylum. This notochord provides structural support for the body and is present in all chordates at some stage of their life cycle.
Sharks rays and skates belong to what group?
Chondrichthyes
What phylum does stingrays belong to?
Stingrays belong to the phylum Chordata, which includes all animals with a notochord (flexible rod-like structure) at some stage in their development. They are specifically classified in the class Chondrichthyes, which includes cartilaginous fish like sharks and rays.
What is the main difference between Agnathans and Chondrichthyes?
The main difference between Agnathans (jawless fish) and Chondrichthyes (cartilaginous fish) is the presence of jaws. Agnathans lack jaws, while Chondrichthyes have well-developed jaws. Additionally, Agnathans have a cartilaginous skeleton, while Chondrichthyes have a skeleton made of cartilage.
All chordates have a supportive rod along their back called the?
notochord.
What is the Difference between a vertebrate and a notochord?
A vertebrate is an organism with a backbone made of individual vertebrae, while a notochord is a flexible rod-like structure present in the embryos of all chordates (including vertebrates) that provides support. Vertebrates develop from embryos that have a notochord, but in vertebrates, the notochord is eventually replaced by the vertebral column.
What type of body covering does an organism in the class Chondrichthyes have?
An organism in the class chondrichthyes has a shiny gloss of nutrition on it.
