Cells
thin, flat cells that cover the exterior of a sponge
pinacocytes
Name for the pores on a sponge
Ostia
Sponges have what type of symmetry
asymmetry
Spicules are made of calcium carbonate
calcarea
The process in which sponges get their food is called
filter feeding
Cells used by a sponge to create an incoming current
choanocytes or collar cells
The exit opening on a sponge where water and wastes leave
osculum
The most common body plan of sponges
Leuconoid
Contains 95% of living sponge species, including freshwater sponges
demospongiae
Choanocytes are also known as ___________cells.
collar
The jellylike layer between the ectoderm and endoderm
mesohyl
Skeleton type make up of flexible protein fibers
spongin
When sperm are released into the water by one sponge and taken into the canal system of another to be fertilized it is an example of
sexual reproduction
Spicules are made of calcium carbonate
Calcarea
sponge body form with canals
syconoid
The hollow center in a sponge
spongocoel
skeleton type make up of microscopic needlelike structures
spicules
Sponges are broken down into different classes based on
the composition of their skeletons
Contains mostly deep-sea forms, such as glass sponges
hexactinellida
sponge body form with chambers
Leuconoid
Cells that can turn into Oocytes
Amoebocytes
These structures on the choanocytes capture food particles.
Microvilli (the collars!)
In addition to gathering food, what other process are choanocytes important for?
respiration (getting oxygen)
These are encrusting sponges
Homoscleromorpha
The smallest and simplest body plan of sponges
Asconoid