BIOL 2251: Porifera (Exam 2) – Questions With
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Practice questions for this set
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- Asconoid (simplest)
- Syconoid
- Leuconoid (most complex)
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1 canal systems of sponges 2 Porifera
3 Choanocytes 4 dermal cell pigments
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Terms in this set (57)
, phylum of sponges, the simplest
animals
name means "pore-bearing"
Porifera
skeleton made of spicules or
collagen
sessile adults
make up the skeleton of sponges
that have taxonomic importance
may be made of calcium
spicules
carbonate or silica, may have a
characteristic number of prongs
secreted by sclerocytes
Porifera sessile adults ***
found in all seas at all depths and
vary greatly in size
Porifera location
can grow on a variety of other
living organisms such
as barnacles, coral, and molluscs
dermal cell pigments give many species of sponges bright colors
- red boring sponge
- encrusting sponge
growth forms of sponges - finger sponge
- variable sponge
- tube sponge
8500 species, mostly marine
Porifera species number
150 species are freshwater
depend on shape of substrate,
Porifera growth patterns direction and speed of water current, and available
space
many animals (crabs, fish) live as commensals or
Porifera ecological role
parasites in or on sponges
Complete Solutions
Save
Practice questions for this set
Learn 1 /7 Study with Learn
- Asconoid (simplest)
- Syconoid
- Leuconoid (most complex)
Choose an answer
1 canal systems of sponges 2 Porifera
3 Choanocytes 4 dermal cell pigments
Don't know?
Terms in this set (57)
, phylum of sponges, the simplest
animals
name means "pore-bearing"
Porifera
skeleton made of spicules or
collagen
sessile adults
make up the skeleton of sponges
that have taxonomic importance
may be made of calcium
spicules
carbonate or silica, may have a
characteristic number of prongs
secreted by sclerocytes
Porifera sessile adults ***
found in all seas at all depths and
vary greatly in size
Porifera location
can grow on a variety of other
living organisms such
as barnacles, coral, and molluscs
dermal cell pigments give many species of sponges bright colors
- red boring sponge
- encrusting sponge
growth forms of sponges - finger sponge
- variable sponge
- tube sponge
8500 species, mostly marine
Porifera species number
150 species are freshwater
depend on shape of substrate,
Porifera growth patterns direction and speed of water current, and available
space
many animals (crabs, fish) live as commensals or
Porifera ecological role
parasites in or on sponges
