Which of the following systems is not segmentally arranged in annelids?
Correct answer: C. Circulatory system
- A. Excretory system
- B. Digestive system
- C. Circulatory system
- D. Nervous system
Explanation
The system that is not segmentally arranged in annelids is the circulatory system (option c). Other systems like the digestive, nervous, and excretory systems often exhibit segmental repetition in these organisms.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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