(School Name)

Comparative Arthropod Anatomy

Bilateral symmetry

Segmented bodies

Jointed appendages

Hard exoskeletons

Tagmata: regions specialized for specific functions

Jointed appendages

Uniramous or biramous


Chitin, proteins, lipids


Covers thorax and head regions

Move using muscles

True coelom covering reproductive and excretory organs

Open circulatory system (dorsal blood vessel and hemocoels)

Respiration via trachea, gills, or book lungs

Excretion via coxal glands or Malphigian tubules

Nervous system: 2 main nerve cords, ganglia, sensory organs

Simple and compound eyes

Hair-like bristles that can sense touch

Grows by adding body segments at posterior end

Must molt its exoskeleton periodically

Sexual reproduction: production and fusion of gametes

Complete metamorphosis: larval, pupal, and adult stages

Incomplete metamorphosis: newly hatched young look like miniature adults