Which of the following organisms is not in the phylum Echinodermata?
a. brittle star
b. lancelet
c. sea star
d. sand dollar
Answer (3)
B. Lancelet A lancelet is one of the few exceptions in the phylum Chordata that isn't a vertebrate.
The study of animals is called **zoology. **
The correct answer to the question is option B which is** lancelet.**
What is phylum?
A group of classes is called** phylum** which helps to classify the **species **having the same characteristics.
According to the question, lancelets belong to the chordate while others were the example of Echinodermata.
Hence, the correct answer to the question is option B.
For more information about the phylum , refer to the link:-
https://brainly.com/question/14688752
The organism that is not in the phylum Echinodermata is b. lancelet . Lancelets belong to the subphylum Cephalochordata within the phylum Chordata, while brittle stars, sea stars, and sand dollars are all echinoderms. Therefore, option B is the correct choice.
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