Psuedocoelomates Flashcards
what two phyla are considered to be Psuedocoelomates
Rotifera (rotifers), and Nematoda (round worms)
What does rotifer mean?
Wheel animal
Rotifers are cell constant animals, what does this mean?
What happens if a cell is lost?
all members of the same species have the exact same number of cells. If a cell is lost, it will not be replaced by mitosis.
rotifers have a _______ organ called a ______ for breaking down food
Grinding organ called a mastex
What is a unique reproductive ability found in rotifers? is it the only way for them to reproduce?
Parthenogenesis, no they can reproduce sexually under some conditions
what is parthenogenesis?
when eggs are not fertilized they can develop as a clone of the mother.
where are rotifers found?
every type of aquatic habitat and damp terrestrial habitats.
What kind of muscles are found in phylum Nematoda?
Only longitudinal
What phylum includes trichinella? how are they obtained?
Nematoda. undercooked pork,
do Psuedocoelomates have organs?
yes
Are members of nematode parasitic or free living?
Some of both
Where are nematoda found?
fresh and marine water, soil, plant tissues, and the flesh and fluids of animals.
