Arthropoda I & II Phylum Features

Arthropoda I: Organization

Tissue & Organ level

Arthropoda I: Embryonic development

protostome

eucoelomate

tripoblast

Arthropoda I: symmetry

bilateral

Arthropoda I: skeleton

exoskeleton

Arthropoda I: movement

paired jointed appendages

Arthropoda I: sensory/nervous

ventral nerve cord

dorsal brain

cephalization

Arthropoda I: Crustaceans: excretory

green glands

Arthropoda I: circulation

open

Arthropoda I: Chelicerates: Respiration

book gills

Arthropoda I: Arachnids: Respiration

book lungs

Arthropoda I: Crustaceans: respiration

gills

Arthropoda I: Reproduction

Diecious (most)

Sexual

Indirect development (most)

Arthropoda I: Cirripedia: Reproduction

Monoecious

Arthropoda I: Crustacea: Reproduction

nauplius larva

indirect development

Arthropoda I: Arachnida: Reproduction

direct development

Subphylum Chelicerata: Antenna

do not have any

Subphylum Crustacea: antenna

antennae and attenules

Subphylum Chelicerata: skeleton

chitinous skeleton

Subphylum Crustacea: skeleton

calcified chitinous skeleton

Subphylum Chelicerata: Cephalothorax

Pedipalps

Chelicerae

Walking legs

Subphylum Crustacea: Cephalothorax

Maxillipeds

Chelipeds

Preiopods

Subphylum Chelicerata: respiration

book lungs

book gills

Subphylum Crustacea: abdomen

pleopods/swimmerettes

uropods

tetson

Phylum Crustacea: movement

biramous appendages

Subphylum Chelicerata: excretion

coxal gland

malpighian tubules

Subphylum Crustacea: excretion

green gland