lab 5 Flashcards
what type of tissue layers nematoda
triploblastic, w well defined organs
what type of gut nematoda
complete gut
types of ceolums in nematoda
acoelomate and pseudocoelom
what does pseudocoelom function as?
hydrostatic skeletonwha
what is eutely
fixed number of cells in adult, some small nematodes
cuticles in nematoda
most have nonliving cuticle, thick cuticles limit growth and are moulted
paracitic nematoda
either have simple (no intermediate) or complex life cycle
what are only present w thick cuticles
longitudinal muscles
phylum nematoda
example
round worm
ascaris- endoparaciticp
pseudocoelum
food filled body cavity parially covered in mesoderm
cuticle
barrier between the animal and its environment
longitudinal muscles
only move by contracting the long muscles on either side of their body and wriggling forward.
undulating–> one directoin
dorsal and ventral nerve cords
motor and sensory control
how does namatode grow
its acellular cuticle, it sheds
phylum nematomorpha
horsehair worms
the nasty fuckers