Phoronida (Horseshoe Worm) Flashcards
1
Q
Major traits
A
marine, live in permanent chitinous tubes, lophophore is only external feature
2
Q
Lophophore coiling : Body size ratio
A
Coiling of lophophore allows increased number of tentacles and thus increased surface area
3
Q
Corpuscular hemoglobin
A
An adaptation to life in anoxic or hypoxic conditions
Lophophore extends up into the oxygenated water, but this water is not circulated to the remainder of the
organism in the tube
4
Q
Actinotroch Larva
A
Free swimming young that settle in sediment, produce large stalk - become adult
