Invertebrates - Ecdysozoa

Question 1

ecdysozoa types

Answer 1

nematoda
arthropoda

Question 2

ecdysozoa

Answer 2

have a cuticle (tough external coat shed during ecdysis/molting)

Question 3

nematodes

Answer 3

roundworms
nutrients transported by fluid in hemocoel
live freely in moist soils & bottom of water bodies
c. elegans - soil nematode

Question 4

arthropoda

Answer 4

a billion billion arthropods on earth
segmented body, hard exoskeleton, jointed appendages
external gills/internal trachae for breathing

Question 5

arthropoda types

Answer 5

chelicerates
myriapods
pancrustaceans

Question 6

chelicerates types

Answer 6

sea spiders, horseshoe crabs, scorpions, ticks, mites, spiders

Question 7

myriapods types

Answer 7

centipedes, millipedes

Question 8

pancrustaceans types

Answer 8

insects, lobsters, shrimp, barnacles, crustaceans

Question 9

chelicerata

Answer 9

arachnids - spiders, scorpians, ticks, mites
6 paired appendages - 4 pairs of legs, 1 pair of chelicerea, 1 pair pedipalps

Question 10

myriapodia

Answer 10

terrestrial
attenae + 3 pairs of appendages for mouth
millipedes - two pairs of legs, eat plant matter
centipedes - one pair of legs per segment, carnivores/venomous

Question 11

pancrustaceans

Answer 11

insects
crustaceans

Question 12

crustaceans

Answer 12

highly specialized appendages
isopods, decapods, planktonic crustaceans

Question 13

crustaceans - isopods

Answer 13

largest group, terrestrial (pillbugs) and water

Question 14

crustaceans - decapods

Answer 14

large crustaceans - lobsters, crab, crayfish, shrimp

Question 15

crustaceans - planktonic

Answer 15

small and numerous
krill

Question 16

insects

Answer 16

most abundant and species rich of all animals
terrestrial and freshwater, few marine
complex internal organ systems
wings = extension of cuticle, keep same number of walking legs

Question 17

complete vs incomplete metamorphosis

Answer 17

incomplete - three stages, egg nymph adult
complete - four stages, egg, larva, pupa, adult

Question 18

insect - coleoptera/beetles

Answer 18

hardened forewings to protect hindwings
biting and chewing mouthparts

Question 19

insect - lepidoptera/butterflies and moths

Answer 19

caterpillars have chewing mouthparts
adults have proboscis to feed on nectar
wings covered in tiny scales

Question 20

insect - diptera/flies

Answer 20

maggots/larvae need moist environment
one pair of wings
adults have mouthparts

Question 21

insect - hymenoptera/bees, wasps, ants

Answer 21

caste system, parental care
chewing, sucking mouthparts in bees and wasps
wasps lay eggs in other nests
female ovipositor modified for stinging

Question 22

insect - hemiptera/true bug,hoppers

Answer 22

forewing often leathery to protect hindwing
piercing/sucking mouthparts
stink bugs, assassin bugs, bed bugs, cicadas, aphids

Question 23

insect - orthoptera/grasshoppers, crickets

Answer 23

modified hindlegs for jumping
chewing mouthparts
locusts