Question

Which of the following animals has a lophophore?
Otions:
A. Waldheimia
B. Wallago
C. Wall lizard
D. Heart-urchin

Answer 1

Hint: A lophophore is a feeding organ characteristic to four main groups of animals, which include, the Brachiopoda, the Bryozoa, the Entoprocta, and the Phoronida. All these groups together constituted the Lophophorata. All animals in Lophophorata are known as lophophores and all of them are aquatic organisms.

Complete answer: A lophophore is an organ exclusively found in aquatic invertebrates belonging to the phyla Bryozoa, Phoronida, and Brachiopoda. Its function is filter-feeding. It contains a ridge of hollow tentacles that bear cilia that drift the food particles inside the mouth.
-Brachiopods have a lophophore like bryozoans and phoronids, it is a circlet of tentacles which contains cilia or fine hairs which produce a water current. This current enables the animals to filter the food particles out of water.
-Waldheimia is an aquatic animal that contains a lophophore. Waldheimia is a genus of brachiopods that closely resembles Terebratula, apart from possessing longer brachial loops. It also includes many fossil forms and a few of them still exist in the deep sea. Waldheimia is a Brachiopod and therefore it contains a lophophore.
So the correct answer is option A.
Additional Information:
Phylum Brachiopoda, commonly known as Brachiopods, is a group of lophotrochozoa animals. These animals have hard valves or shells on the upper and lower surfaces and the front is opened for feeding or is often closed for protection.

Note: The term Lophophore is derived from the Greek word lophos meaning crest or tuft, and the word –phore or phoros which means bearing is a derivative of a Greek word phérein to bear. Hence, the word means crest-bearing.