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Tough external coat an animal sheds
Cuticle
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Process in which animal sheds outter coat
Molting
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are nematodes segmented or non segmented
nonsegmented
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nematodes lack , but have a .
circulatory system, alimentary canal
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how are fluids transported through a body of a nematod
pseudocoelom
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reisistant cells that can survive harsh conditions
zygotes
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studies on C. elegans reveal what type of research
ageing of humans
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T. spiralis causes what
Trichinosis
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T spiralis affects what type of cells
muscle
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The diversity and sucess of arthropods are realated to what
their body plan - segmented bodies, hard exoskeleton, jointed appendenges
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Did the arthropod body plan result from new hox genes?
No, the increased body plan diversity and segmantaion did NOT originate from new Hox genes
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What invertabretes were used in the experiment
Onychophorans
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evolution in body plan diversity arose from changes in the sequence or regulation of existing body Hox genes
yep
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what is the exoskeleton made of
protiens, and polysacchride chitin
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Arthropods have what type of ciruculatory system
Open
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What is the fluid that is inside arthropods
Hemolymph
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clawlike feeding appendenges spiders have are called
Chelicerae
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appendenges that function in sensing, feeding, and reproduction
pedipalps
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Gas exhange in spiders are carried out by
book lungs
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metabolic wastes are removed from the heolymph by excretory organs called
malphighian tubules
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gas exhange in insects are conducted in
Tracheal Tubes
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incomplete metamorphasis
looks like an adult
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complete metamorphasis
has the larve stages
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what is one key to great success in insects
flight
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internal stucture where sperm is stored in a female is called
spermatheca
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