echinidan in a sentence
n.
Definition
Echinidan refers to a marine organism belonging to the class Echinoidea, characterized by a spiny exterior, commonly known as sea urchins and found in shallow coastal environments.
Sample Sentences
- The echinidan, with its spiny exterior, is often found in shallow marine environments.
- Researchers are studying the echinidan's unique adaptation to its coastal habitat.
- Echinidans play a crucial role in the marine ecosystem by helping to maintain the balance of algae growth.
- During our dive, we encountered a variety of echinidans, each exhibiting fascinating colors and patterns.
- Understanding the life cycle of the echinidan is important for marine conservation efforts.
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