Question

plzz.. (1) Assign a group to an organism 'X' which is notochord in larval stage. (2) What would be the place of occurance of 'X'? (3) What would be the type of symmetry in 'X'?

Answer 1

Protochordata is an organism which have notochord in larval stage.
It's place of occurence is Phylum Chordata.
Bilateral Symmetry.

Answer 2

Protochordata and its characteristics

Explanation:

• X group - protochordata: The living beings having a place with the Protochordata are commonly known as the lower chordates. They don't frame an "appropriate" scientific categorization and are just delegated such for comfort purposes. Be that as it may, they do shape a significant division of Chordata. They are otherwise called Acraniata on the grounds that they come up short on a genuine skull. They are isolated into three sub-phyla-Hemichordata, Urochordata, Cephalochordata.
• Place: Sea because They are commonly found in marine water. and their body is respectively balanced, triploblastic, and coelomated.
• Symmetry in X: Bilateral symmetry because They display organ system level of association.   Eg: Herdmania, Amphioxus etc.