Which of the following animal belongs to Urochordata : -a)Herdmaniab)Balanoglossusc)Amphioxusd)PetromyzonCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Herdmania momus. The solitary ascidianHerdmania momus is one of the most commonly encountered species of ascidians. While commonly referred to simply as sea squirts, this name is ambiguous, as it can refer to any member of the sub-phylum Tunicata.

Answer

A herdmania

Answer

A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata, which is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords. The subphylum was at one time called Urochordata, and the term urochordates is still sometimes used for these animals

Answer

Herdmania belongs to urochordates
because it has notochord in it's embryonic stage only .

Answer

Urochordata and its members:

Urochordata, also known as tunicates or sea squirts, is a subphylum of chordates. These marine animals are characterized by a leathery or tough outer covering called a tunic. Urochordates are filter feeders and are usually sessile in their adult stage. They exhibit a unique combination of characteristics that make them distinct from other chordates.

Members of Urochordata:

Among the given options, the animal belonging to Urochordata is Herdmania. Let's take a closer look at each option:

a) Herdmania:
Herdmania, also known as the heart sea squirt, is a genus of solitary tunicates. It is a member of the Urochordata subphylum. These organisms are sessile and attach themselves to various substrates in marine environments. They have a sac-like body covered by a leathery tunic. Herdmania is a filter feeder, and it extracts food particles from the water through its incurrent siphon.

b) Balanoglossus:
Balanoglossus, also known as acorn worms, belongs to the phylum Hemichordata. Although they share some similarities with chordates, they are not classified under Urochordata.

c) Amphioxus:
Amphioxus, also known as lancelets, belongs to the subphylum Cephalochordata. Like tunicates, they are also chordates but exhibit some unique features that differentiate them from Urochordates.

d) Petromyzon:
Petromyzon, commonly known as lampreys, belongs to the class of jawless fishes. They are vertebrates and belong to the subphylum Vertebrata, not Urochordata.

Conclusion:

Among the given options, Herdmania is the animal that belongs to Urochordata. Urochordates, or tunicates, are characterized by their sessile lifestyle, tunic covering, and filter-feeding behavior. Herdmania, a genus of solitary tunicates, exhibits these characteristics and is classified under Urochordata.

Similar NEET Doubts

Identify the animal (

Which of the following statements correctly describes the presence of the notochord in Urochordata and Cephalochordata?

Which of the following animal is devoid of notochord and nerve cord in its adult stag

Trick to remember examples of "Urochordata"?

Which of the following urochordate animal is called indian "Sea squirt" :

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

NEET Mock Test Series 2025

Topic-wise MCQ Tests for NEET

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Suggested Free Tests

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company