bio II lab protosomes; ecysozoa

2 clades of ecdysozoa

arthropodia and nematoda

ecdysozoa have ____________ symmetry

bilateral

ecdysozoas are ______blastic

triplo

classes of anthropodia

Class chelicerata, class myriapoda, class crustacea, and class hexapoda

subclasses of class chelicerata

class merstomata and class arachnida

subclasses of myriapoda

class chilopodia and class diplopoda

process to molt

ecdysis

example of phylum nematoda

roundworms

most abundant animal on earth (include phylum)

roundworms; nematoda

nematodes are ______coelomates

pseudo

nematodes have a _________ digestive system

compete

nematodes are common ___________ and are ____-________

parasites; free-living

nematodes lack a _____________ _______

circulatory system

nematodes use _________ or gas exchange

diffusion

nematodes are un___________

segmented

nematodes have sexual ___________

dimorphism

phylum that were the first terrestrial animals

arthropodia

arthropods are true ___________

coelomates

arthropods have a _________ digestive system

complete

arthropods have a(n) ______ circulatory system

open

arthropods have a ____________ exoskeleton, and are __________

segmented; metameric

when some segments have repeated organs

metameric

arthropods have _____________; specialization of body regions

tagmatization

arthropods have ______ appendages

jointed

most arthropods have _________ respiratory organs

internal

many arthropods are capable of _______

flight

arthropods have highly modified __________ segments for __________

anterior; feeding

anterior appendages of class chelicerata, and can be _________ or _____

pinchers; fangs

secondary appendages of class chilicerata, and used for __________/_________; no mandible

pedipalps; locomotion/feeding

class chelicerata have ___ pairs of walking legs

4

class chelicerata have no __________

antennae

an example of subclass merostomata

horseshoe crabs

subclass merostomata have broad _________-shaped cephalothorax and a _____ abdomen

horseshoe; small

subclass merstomata have a _______ that helps them flip back over

telson

subclass merostomata have ____ _____ used for movement and respiration

book gills

subclass arachnida are composed of spiders, _____, _____, __________, etc

mites; ticks; scorpians

subclass arachnida have ____ _____ for respiration for spiders and most scorpians

book lungs

subclass arachnida have _________ for respiration for mites and ticks

tracheas

class ___________ have mandibles

myriapoda

class myriapoda have ___ pair of antennae

1

class myriapoda have ____ on most body segments

legs

subclass chilopoda are composed of _____________; 1 pair of ____ per segment

centipedes; legs

subclass __________ are predatory with fangs

chilopoda

subclass diplopoda are composed of _____________; 2 pairs of ____ per segment

milipedes; legs

subclass __________ are detritivores

diplopoda

class hexapoda are composed of __________

insects

class hexapoda have how many pairs of legs?

1

_____ are possible for class hexapoda

wings

class hexapoda have 3 ________; head, thorax and abdomen

tagmata

class hexapoda have a __________ system for respiratory

tracheal

class crustacea have paired __________

anntenae

class _________ have gills

crustacea

most crustacea have 2 _______

tagmata

class crustacea are composed of __________, crabs, crayfish, _________, ___________ and shrimp

lobsters; barnacles; isopods