Phylum Arthropoda - Class Maxillopoda Flashcards
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Questions and Answers

What term describes most barnacles?

  • Asexual
  • Dioecious
  • Viviparous
  • Monoecious (correct)

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?

Filter-feeders

The acorn barnacle lacks a ______.

<p>stalk</p> Signup and view all the answers

How does the goose barnacle attach?

<p>Stalk attaches to shell.</p> Signup and view all the answers

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!

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