The Smaller Lophotrochozoan Phyla Unit Flashcards
What are the characteristics of lophotrochozoans?
bilaterally symmetrical, triplobastic, protostomes
Locophore function
horseshoe shaped feeding structure that shows evolutionary relationships
How many species are in phylum platyhelminthes?
34,000
Are platyhelminthes segmented or unsegmented?
unsegmented
What classes are in phylum platyhelminthes?
turbellaria, trematoda, monogenea, and cestiodea
How does class turbelleria reproduce sexually and asexually?
sexually: monoecious
asexually: transverse fission
Is the phylum platyhelminthes - or + photoreceptive?
negative photoreceptive
What is locomotion and how does it move?
they are bottom dwellers and they move using cilia and muscular contractions
the class monogenea are what type of parasites?
external (means they live on the outside of the body)
what does class trematoda consist of?
flukes
what does class cestiodea consist of?
tapeworms
how long does it take for summer capsules to hatch?
2-3 weeks
how long does it take autumn capsules to hatch?
hatch after winter and thick walls keep them from freezing
Do monoecious eggs hatch around the seasons they are called?
No, it is not about when they actually hatch in those seasons, it is more about the conditions being favorable
about how many species are in class trematoda?
10,000