Arthropoda Basics

These flashcards cover the basic vocabulary and concepts related to the phylum Arthropoda.

Arthropoda

Phylum meaning 'jointed feet' representing organisms like insects, spiders, and crabs.

Jointed appendages

Limbs or parts such as legs and antennae that are characterized by joints allowing for movement.

Bilateral symmetry

A body plan where the left and right sides are mirror images of each other.

Triploblasts

Organisms that develop from three embryonic layers: ectoderm, mesoderm, and endoderm.

Coelomates

Organisms with a true coelom, a fluid-filled body cavity completely lined by mesoderm.

Protostomes

A developmental category of animals where the mouth develops before the anus.

Exoskeleton

A rigid external covering that provides support and protection to organisms like arthropods.

Segmentation

The division of an organism's body into repetitive segments, which can offer flexibility and mobility.

Tagmata

The segments of an arthropod's body, typically including the head, thorax, and abdomen.

Japanese spider crab

The largest known species of arthropod.

Dust mite

The smallest known species of arthropod.

Antennae

Sensory appendages used by arthropods for sensing their environment.

Claws and fangs

Jointed appendages used by arthropods for defense and capturing prey.