Respuesta :
The answer is B
The phylum Nematoda (roundworms) is one of the most common phyla.
There more than 15,000 known species of roundworms, however, there are many thousands of individual varieties nematodes, as well.
The study of animals is called zoology.
The correct answer to the question is option B which is Echinodermata – bilateral symmetry as a larva, water vascular system.
What is bilateral symmetry?
- When a species has two equal halves when it cut through the specific plane is called bilateral symmetry.
According to the question, the Echinodermata has bilateral symmetry and consists of a water vascular system that helps to move in any direction.
An example of the Echinodermata is starfish.
Hence, the correct answer to the question is option B.
For more information about zoology, refer to the link:-
https://brainly.com/question/14688752
