class echinoidea

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Explanation of "Class Echinoidea"

Definition:
"Class Echinoidea" is a scientific term that refers to a group of marine animals commonly known as sea urchins and sand dollars. These creatures have hard, round bodies covered with spines.

Advanced Usage:

In more advanced discussions, you might encounter terms related to their biology, such as "echinoderm," which is the larger group that includes class Echinoidea, starfish, and sea cucumbers.

Word Variants:

• Echinoderm: This is the broader classification that includes sea urchins, sand dollars, starfish, and other similar organisms.
• Echinodermata: This is the phylum that includes class Echinoidea.

Different Meanings:

In general English, "urchin" can also refer to a mischievous child, but this is unrelated to the scientific term.

Synonyms:

• Sea urchins (for the specific members of class Echinoidea)
• Sand dollars (another common member of this class)

Idioms and Phrasal Verbs:

There are no specific idioms or phrasal verbs directly related to "class Echinoidea" as it is a technical term. However, you might use phrases like: - "Dive into marine biology" when discussing the study of creatures like sea urchins. - "Explore the ocean floor" when referring to where these creatures live.

Summary:

"Class Echinoidea" is a scientific term for sea urchins and sand dollars, important to marine ecosystems.

Academic

Noun

1. sea urchins and sand dollars

Synonyms

• Echinoidea
• class Echinoidea