wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Ascaris is characterized by the

A
presence of metamerism only
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
presence of true coelom but an absence of metamerism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
presence of neither true coelom nor metamerism
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
presence of true coelom and metamerism
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C presence of neither true coelom nor metamerism
Ascaris belongs to phylum Aschelminthes. It is characterized by the presence of pseudocoelom and an absence of metamerism. In pseudocoelomates, the body cavity is not lined by mesoderm. Instead, they have a false fluid-filled cavity.

Metamerism is the external and internal division of the body into segments with a serial repetition of organs in each segment.

Presence of true coelom and metamerism is a characteristic feature of the members of the phylum Annelida such as earthworms.

Presence of true coelom and absence of metamerism is exhibited by the organisms such as snails, mussels, starfish, etc.

Animals belonging to the phylum Porifera and Coelenterata do not have true coelom and metamerism.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Classification of Animals
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon