Questions and answ er s w ith
accur ate r ationales(PASSED)
Phylum Ar thr opoda char acter istics - answ er
Ecdysozoans: m olt their cuticle (ecdysis),
pr otostom e coelom ates,
segm ented bodies,
jointed appendages for locom otion,
cuticle as exoskeleton,
highly developed sensor y or gans,
com pound eyes,
open cir culator y system ,
pr otostom e - answ er m outh for m s befor e the an us,
spr ial cleavage,
deter m inate,
,phylum Ar thr opoda subphylum s - answ er subphylum
Chelicer ata,
subphylum Myr iapoda,
subphylum Chelicer ata - answ er chelicer ae for feeding
(spider s),
body divided in 2 tagm ata (pr osom a and opisthosom a),
6 pair s of appendages,
pedipalps (taste, sm ell, and chem ical detector s),
4 pair s of w alkin g legs,
Class Pycnogonida (sea spider s) - answ er sea spider s,
all m ar ine,
m ales br ood eggs on "oviger " legs,
Class Mer ostom ata - answ er hor seshoe cr abs,
car apace (dor sal shield),
telson (tail like piece)
Class Ar achnida - answ er spider s, m ites, ticks, and
scor pions,
,fr ee living in w ar m and dr y r egions,
pr edaceous,
fan gs= chelicer ae,
claw s= pedipalps,
venom glands,
stin ger s,
w eb spinning
Class Ar achnida r epr oduction - answ er dioecious,
cour tship r itual pr ecedes m ating,
after m atin g the spider s lay eggs,
scor pions ar e vivipar ous: Fem ales br ood their young,
m ites and ticks lay eggs an d a lar va hatches (im m atur e
stages)
subphylum Myr iapoda char acter istics - answ er
ter r estr ial,
tw o tagm ata,
head w ith anten nae and sim ple eyes,
tr unk w ith pair ed appendages,
, Class Diplopoda - answ er m illipedes,
her bivor ous,
pr efer dar k and m oist places,
slow m ovin g anim als that r oll into a ball,
dioecious,
fem ales lay eggs in n est,
lar val for m s w ith only one pair of legs per segm ent
Class Chilopoda - answ er centipedes,
fl atten ed bodies,
m ost w ith a pair of legs,
fi r st: venom claw s,
agile car nivor es,
kill w ith venom claw s,
chew w ith m andibles,
r epr oduction: m ust m ate,
sper m packet on the gr oun d until fem ale takes it,
dir ect developm ent
subphylum Cr ustacea - answ er shr im p, cr ab, lobster ,
bar nacles,