Phylum Porifera Flashcards
(19 cards)
Syconoid
Water passes through dermal ___ to ___ canals through ____ into ___ canals then through ___ into spongocoel and water goes out the ___.
dermal pores
incurrent canals
prosopyle
radial canals
apopyle
osculum
How does water pass from incurrent canal to radial canal?
prosopyle
Cup shape
Smooth sides
Asconoid
dermal pores -> incurrent canal -> choanocyte chambers -> excurrent canals -> out of many osculum
Leucon / Leuconoid
Pokey and rigid skeletal features
spicules
White passage way for water to prosopyle
incurrent canal
Cells for growth, repair, reproduction, immunity and, maintain the skeleton
endoderm
mesenchyme
Sycon / Syconoid
3 cell types
Pinacocytes
Choanocytes
mesenchyme
How does water get from the radial canal to the spongocoel?
apopyle
Empty space
hydrostatic skeleton
Spongocoel
Outer covering
ectoderm
pinacocytes
Feeding cells
endoderm
choanocytes
Body type for area with a lot of nutrients
Ascon / Asconoid
Phylum Porifera symmetry type?
Asymmetry
Dermal pore -> spongocoel -> osculum
Ascon / Asconoid
3 skeletal features
spicules
spongin
spongocoel
elastic skeletal feature
spongin
What germ layers do sponges have?
endoderm and ectoderm
