Ch 33: Invertebrates - Nematoda Flashcards
these worms are segmented or unsegmented?
unsegmented
What are they covered by?
a thick waxy cuticle
t or f they are rare and uncommonly found
f they are very abundant and found in diverse habitats
they have Longitudinal musculature, what does this mean?
they have long muscles that extend along their bodies
do they have a respiratory system?
no, they exchange gas through their cuticles
they Posses a well developed…
digestive system
what are Stylets?
they are piercing organs near their mouths
they are active hunters and prey on ___
Protist
t or f they can be parasitic?
t
they reproduce through separate sexes or are they hermaphroditic?
separate sexes
they exhibit direct development meaning…
small juvenile hatch from an egg
what is another name for nematodes?
round worms
what can they cause in humans?
disease
Trichinella
is found in uncooked pork and infects muscles
Pinworms
are found in the human rectum
