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Arthropoda (body (organ system level of organisation, bilateral symmetry,…
Arthropoda
body
organ system level of organisation
bilateral symmetry
triploblastic
segmented
coelomate
covered by chitinous exoskeleton
consists of head, thorax, abdomen
have jointed appendages
Life Processes
Repiration
Respiratory organs
gills
Book Gills
Book lungs
tracheal system
Circulation
Open circulatory system
Sensitivity
sensory organs
antennae
eyes
Simple
Compound
statocysts (balance organs)
Excretion
through malpighian tubules
Reproduction
organisms are mostly dioecious
Fertilisation
internal
Mostly oviparous
direct or indirect development
Examples
Economically important insects
Apis
(Honey bee)
Bombyx
(Silkworm)
Laccifer
(lac insect)
Vectors
Mosquitoes
Anopheles
Culex
Aedes
Gregarious pest
Locusta
(Locust)
Living fossil
Limulus
(King crab)