How Small Are Most Bryozoans?

💡 The Answer

• Typical bryozoan individuals measure about 0.5 millimetres long.
• They are among the tiniest aquatic invertebrates.
• Despite their minuscule size, they form visible colonies.
• Their small size necessitates a specialized feeding structure called a lophophore.
• The lophophore is a crown of tentacles used for filter feeding.