Chordates have closed circulatory systems, centralized nervous systems, internal skeletons, notochord, and, tail.
Arthropods vs Chordates
Arthropods are similar to chordates in that they are both triploblastic and bilaterally symmetrical, among many other features.
However, chordates show more evolutionary advancement over arthropods in terms of:
- possession of a closed circulatory system instead of an opened one found in arthropods.
- possession of a centralized nervous system.
- possession of internal skeletons that do not require shedding before growing, unlike arthropods with exoskeletons.
- possession of a dorsal hollow nerve cord that develops into the brain and spinal cord in some chordates.
- possession of a tail.
More on chordates can be found here: https://brainly.com/question/8124743
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