arthopoda chelicerates Flashcards
what are some extremely generalised features of the arthropoda super phyla
chitin exoskeleton, jointed appendages, segmented body, separate sexes
what is a distinction of chelicerates and what are some main members of this
no antennae, scorpions spiders horseshoe crabs
what are the sub phyla of artropods
merostomata, arachinda, pycogondinda
what are some features of merostomata or horseshoe crabs
only marine chelicerate with gills, 4 living species, scavengers on invertebrates and algae, blood is highly sensitive to bacterial endotoxins
what are the orders of arachindae
scorpidnea, psuedoscorpidnea, acarina, araneae, opiliones
what are some features of scorponidae
neurotoxic sting in tail, blocks potassium and sodium channels, terrestrial and tropical and nocturnal
gas exchange via book lungs
what are some features of psuedoscorpidnae
poison glands in pedipalps, terrestrial
what are some features of the order araneae
predators, terrestrial, external prey digestion, poison gland on each chelicerae
what are some families in the order aranea
theridiidae, lycosidea, salticidae fuck the rest
what are the differences between predator and web building aranea
Thicker legs Long, slender legs
Highly developed eyes Poor vision
Exceptional detection of movement
how do spiders fuck
they fuck nasty
hope you werent hoping for a real answer
what are some features of pycnogonids
marine detritus grazers
what are some features of opiliones
non toxic scaveregers, no silk
what are some features of acarina
mites and ticks, terrestrial, unsegmented abdomen
what are some features of the sub order ixidides
larger up to 2 or 3 cm hard or soft just like me fr, hard has a dorsal shield, vectors for bacteria such as lymes
