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Arthropods / Arthropod Subgroup Adaptations - Coggle Diagram
Arthropods / Arthropod Subgroup Adaptations
Subgroups
Crustaceans
"insects of the seas"
2 pair of antennae / distinct cephalothrorax / abdomen
Millipedes / Centipedes
head with 1 pair of antennae / elongated body / many similar segments
Insects
three part body plan
Most diverse
Chelicerates
Chelicerae - special feeding appendages
Arachnids - 4 pairs of walking legs
Modern Representatives
Spiders
Lobsters
Barnacles
Centipedes
Insects
Characteristics
Bilaterally Symmetrical
Invertebrates
Tubular Gut
Open Circulatory System
Small Coelom
Adaptive Traits
Jointed Exoskeleton
Tough Cuticle which serves as an external skeleton for muscles to attach
Supports the body against the force of gravity
Helps them conserve water
Does not inhibit movement (thin at joints)
Specialized Segments
Segmented Body
Cephalothorax
Appendages modified depending on species
Lobsters: appendages on one segment evolved into large, muscular claws to crush food
Flying insects: wings developed from extensions of the body wall
Compound Eyes
Motion Sensitivity
Antennae
Sensory structures to detect chemicals in water / air
Metamorphosis
Body plan remodeling specialized for different lifestyles to reduce resource competition