| |
Chordates
|
Non-Chordates
|
|
Notochord
|
Presence of cord or notochord.
|
Absence of cord or notochord.
|
|
Limbs
|
Limbs are two pairs.
|
Limbs may be more than two pairs.
|
|
Heart
|
Heart is ventral with hemoglobin, RBC and limbs.
|
Heart is in a dorsal or lateral position with limbs.
|
|
Examples
|
Frog, fish, bird, reptiles, amphibians and mammals.
|
Cockroach, earthworms, flatworms, jellyfish, sponges, insects, water bears, and other arthropods, annelids and protozoans.
|
|
Post **** tail
|
They have post **** tail associated with them.
|
No post **** tail is present in non-chordates.
|
|
Circulatory System
|
Chordates have a closed circulatory system.
|
Usually open circulation of blood takes place in non-chordates.
|
|
Nerve Cord
|
Dorsal, hollow and single nerve cord is present in chordates. The nerve cord is without ganglia.
|
Ventral, solid and double nerve cord is present. The nerve cord of non-chordates have ganglia.
|
|
Gill slits
|
Pharyngeal gill slits are present.
|
Pharyngeal gill slits are absent.
|
|
Respiration
|
Respiration occurs through the gills or lungs in chordates.
|
Respiration occurs through trachea, gills or body surface in non-chordates.
|
|
Body fluid
|
Hemoglobin is present in chordates.
|
Hemoglobin is absent, instead, hemolymph is present which is analogous to bloods in the vertebrates.
|
|
Germ layer
|
Talking about the germ layer, chordates are triploblastic.
|
Talking about the germ layer of non-chordates, they can be diploblastic, triploblastic or neither.
|
|
Symmetry
|
These animals are bilaterally symmetric.
|
These animals can be bilateral, bi-radial, asymmetrical or radial.
|
|
Coelomates
|
They are true coelomates.
|
They can either be true coelomates, acoelomates or pseudocoelomates.
|
|
Exoskeleton
|
Exoskeleton is present in some of the chordates, for example, tortoises.
|
Exoskeleton is present in all non-chordates.
|
|
Endoskeleton
|
Endoskeleton is present in chordates.
|
Endoskeleton is absent in non-chordates.
|
|
Regeneration
|
Chordates have poor regeneration.
|
Non-chordates have good regeneration, mostly.
|
|
****
|
The **** of these animals is differentiated and opens before the last segment.
|
**** in these animals is usually absent and if present, it opens on the last segment.
|
|
Brain
|
The brain of chordates is present, and located dorsal to the pharynx in head.
|
Brain is not as complex as that of chordates if present in some of the animals.
|
|
Organization
|
They have a body with an organ system.
|
Their body organization is protoplasmic to the organ system.
|
Test
Sia ? 4 years, 6 months ago
Chordates
Non-Chordates
Notochord
Presence of cord or notochord.
Absence of cord or notochord.
Limbs
Limbs are two pairs.
Limbs may be more than two pairs.
Heart
Heart is ventral with hemoglobin, RBC and limbs.
Heart is in a dorsal or lateral position with limbs.
Examples
Frog, fish, bird, reptiles, amphibians and mammals.
Cockroach, earthworms, flatworms, jellyfish, sponges, insects, water bears, and other arthropods, annelids and protozoans.
Post **** tail
They have post **** tail associated with them.
No post **** tail is present in non-chordates.
Circulatory System
Chordates have a closed circulatory system.
Usually open circulation of blood takes place in non-chordates.
Nerve Cord
Dorsal, hollow and single nerve cord is present in chordates. The nerve cord is without ganglia.
Ventral, solid and double nerve cord is present. The nerve cord of non-chordates have ganglia.
Gill slits
Pharyngeal gill slits are present.
Pharyngeal gill slits are absent.
Respiration
Respiration occurs through the gills or lungs in chordates.
Respiration occurs through trachea, gills or body surface in non-chordates.
Body fluid
Hemoglobin is present in chordates.
Hemoglobin is absent, instead, hemolymph is present which is analogous to bloods in the vertebrates.
Germ layer
Talking about the germ layer, chordates are triploblastic.
Talking about the germ layer of non-chordates, they can be diploblastic, triploblastic or neither.
Symmetry
These animals are bilaterally symmetric.
These animals can be bilateral, bi-radial, asymmetrical or radial.
Coelomates
They are true coelomates.
They can either be true coelomates, acoelomates or pseudocoelomates.
Exoskeleton
Exoskeleton is present in some of the chordates, for example, tortoises.
Exoskeleton is present in all non-chordates.
Endoskeleton
Endoskeleton is present in chordates.
Endoskeleton is absent in non-chordates.
Regeneration
Chordates have poor regeneration.
Non-chordates have good regeneration, mostly.
****
The **** of these animals is differentiated and opens before the last segment.
**** in these animals is usually absent and if present, it opens on the last segment.
Brain
The brain of chordates is present, and located dorsal to the pharynx in head.
Brain is not as complex as that of chordates if present in some of the animals.
Organization
They have a body with an organ system.
Their body organization is protoplasmic to the organ system.
0Thank You