A dorsal, hollow nerve cord.
Dorsal means pertaining to the back, so a dorsal nerve cord is essentially a spinal cord; it's the never cord in the back. It connects the brain to all of the body below the head.
True. All chordates have a dorsal tubular nerve cord, which is a defining characteristic of this phylum.
Yes. all animals that have a an endoskeleton and a backbone will be present with a dorsal nerve cord.
All chordates have a notochord, a dorsal nerve cord, and pharyngeal slits at some point during their development.
Yes, frogs have a dorsal nerve cord that runs along the back of their body. This nerve cord is part of their central nervous system and plays a key role in coordinating their movements and responses to stimuli.
an earthworm's nerve cord is directly opposite that of a human's. the earthworm's nerve cord is along the ventral side (underside) of its body and the human's nerve cord is on the dorsal side (upperside) of the body along all of the internal organs
Yes, dolphins have a dorsal nerve cord. The dorsal nerve cord is an embryonic feature unique to chordates. Is it hollow and most mammals have one.
The four body parts of all chordates are a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
All chordates have a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail at some point in their lives. These characteristics are present during the embryonic stage, but may be lost or modified as the organism develops further.
All Chordates have:1) a notochord2) pharyngeal slits3) a postanal tail4) a hollow dorsal nerve chordRead more: What_are_the_four_characteristics_of_a_chordate
Three structures that all chordates have in common are a notochord (flexible rod providing structural support), a dorsal hollow nerve cord (which develops into the central nervous system), and pharyngeal slits or pouches (which can be used for filter feeding or respiration).