I don no
Atrium
The long supporting rod that runs through the body of chordates is called the notochord. It provides structural support and helps with body movement. In some species, the notochord is replaced by the vertebral column during development.
They're called Chloroplasts.
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.
gene
Vertebrata.
Chordates such as the sea squirts and lancelets do not have a backbone that is why they are called vertebrate chordates.
All fish are chordates. Chordates are vertebrates that have a hollow dorsal nerve called a notochord. They also have a central nervous system and gill clefts.
Well, no they don't... There's a group of chordates called Agnatha which basically contains all the jawless chordates. And there are obviously limbless chordates present, the fishes and the snakes being the most well-known of the examples...
invertebrates or non-chordates
chordates
granum
Cephalochordates e.g. Amphioxus ,; tunicates , acorn worms etc. are nonvertebrate chordates , they are collctively called protochordates .
The line segments that form a polygon called are called sides or edges.
A closed figure made up of line segments is called a polygon. The segments in a polygon are called sides or edges.
there where a polygon meet that 2 segments is called ''vertex''
notochord