A.Echinoderms
B.Arthropods
C.Molluscs
D.Nematodes
Related Mcqs:
- Water vascular system is present in:
- Which of these do not have a ventral nerve cord:
- A cavity outside body called mantle cavity is found in:
- Peripatus is a connecting link between:
- Archaeocytes and interstitial cells are found respectively in:
- Animals with spiny skin are called:
- Excretory organs in Ascaris are:
- Excretory organs in earthworm are:
- Syncitial hypodermis and muscle layers in:
- Main excretory organs in the frog are:
