Which of the following is NOT a characteristic of the phylum Echinodermata? (202

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Question: Which of the following is NOT a characteristic of the phylum Echinodermata? (2022)

Options:

Correct Answer: Presence of a notochord

Exam Year: 2022

Solution:

Echinodermata do not possess a notochord; this feature is characteristic of Chordata.

Which of the following is NOT a characteristic of the phylum Echinodermata? (2022)

Which of the following is NOT a characteristic of the phylum Echinodermata? (2022)

Step 1: Understand what Echinodermata is. It is a group of marine animals that includes starfish, sea urchins, and sea cucumbers.
Step 2: Learn about the characteristics of Echinodermata. They have a hard, spiny skin, a water vascular system, and are usually radially symmetrical.
Step 3: Identify what a notochord is. A notochord is a flexible rod-like structure that provides support and is found in some animals.
Step 4: Recognize that Echinodermata do not have a notochord. This is a key feature that distinguishes them from another group called Chordata, which does have a notochord.
Step 5: Conclude that the statement 'Echinodermata do not possess a notochord' is correct and is NOT a characteristic of Echinodermata.

No concepts available.