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Diversity of Arthopods (Arachnida : (feeding and digesion (external…
Diversity of Arthopods
Crustaceans
Feeding and digestion
Mandible for chewing
cheliped
Response to stimuli
2 pairs of antennae
2 Compound eyes
Movement
5 pairs of legs
Pair of chelipeds
Has large claws to catch and crush food
Swimmerets
for reproduction while swimming
4 pairs of walking legs
Locomotion
Body Structure
Cephalothorax
Abdomen
Arachnida
:
feeding and digesion
external digestion
secret digestive enzyme to liquefy the prey
then ingest the softened food
carnivores
ex: spiders
parasitic
ex: mites and ticks
response to stimuli
Reproduction
body structure
do not have antennae
2 body part : cephalotorax and abdomen
spinnerets
make silk
appendages
chelicerae
four pair of legs for locomotion
pedipalps
secing and holing prey
Insects
