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Questions and Answers
What term describes most barnacles?
What term describes most barnacles?
What are the characteristics of crustaceans in this phylum?
What are the characteristics of crustaceans in this phylum?
Marine and freshwater; always attached. No abdominal appendages. Adults lack eyes.
What do most barnacles do for feeding?
What do most barnacles do for feeding?
Filter-feeders
The acorn barnacle lacks a ______.
The acorn barnacle lacks a ______.
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How does the goose barnacle attach?
How does the goose barnacle attach?
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Study Notes
Phylum Arthropoda - Subphylum Crustacea - Class Maxillopoda
- Represents a diverse group primarily comprising barnacles, which exhibit a monoecious reproductive system.
- Occupies marine and freshwater environments, demonstrating strong attachment to substrates.
- Exhibits notable characteristics such as the absence of abdominal appendages and the lack of eyes in adult forms.
Feeding and Adaptations
- Most barnacles are filter-feeders, utilizing six pairs of long, coiled cirri to capture food.
- Fine setae on the cirri efficiently remove plankton from the water, highlighting their specialized feeding adaptations.
Types of Barnacles
- Acorn barnacles are characterized by their lack of a stalk, allowing them to directly attach to surfaces.
- Goose barnacles possess a stalk that anchors them to shells or other substrates, distinguishing them from acorn barnacles.
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Description
Test your knowledge on Phylum Arthropoda, specifically the Subphylum Crustacea and Class Maxillopoda. These flashcards cover key definitions and characteristics, including the biology of barnacles and their adaptations. Perfect for Exam 2 preparation!
