ASCHELMENTHIS:

ASCHELMENTHIS:

# commonly called round worm
# they are long, unsegmented, cylindrical body
# from mouth to anus gut is complete
# tube with in tube body plan
# sexual dimorphism
# mostly free living
# 10 to 18 metres
# dorso ventrally flat body
# These animal are unisexual animal means male female separate
# these animl lack Asexual Reproduction
# These animal having nonmuscular enteron
# fertilization internal
# bilateral symmetry
# organ system organization
# aerobic & anaerobic type respiration
# high power of morphollactic regeneration
# germ layer triploblastic
# ammonotelic in nature
# there body wall consist resistant cuticle, epidermis and muscle layer
# No Appendages present for locomotion
# these animal body not lined by epithelium so have pseudo coelom
# These animal respire by there body surface
# excretory organ is protonephridia

@  Unique feature :-

- Synctial epidermis
- Body cavity without a lining of mesodermal epithelium
- Fixed number of cells or nuclei