Q. Which of the following is common in Annelida and Arthropoda?
NTA AbhyasNTA Abhyas 2020
Solution:
Both Arthropods and Annelids are segmented, and members of the Class Polychaeta have a pair of appendages on each segment. Both have a similar plan of the nervous system with a ventral nerve cord, and both of them have a complete digestive system.
Features of non-chordates are as follows:
- Absence of notochord
- Presence of solid, double, and ventral nerve chord
- Absence of gill slits
- The heart is dorsal (if present)
- Absence of post-anal tail
The phylum under norchordates is Porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, and Hemichordata.
Features of non-chordates are as follows:
- Absence of notochord
- Presence of solid, double, and ventral nerve chord
- Absence of gill slits
- The heart is dorsal (if present)
- Absence of post-anal tail