Porifera Flashcards
1
Q
Euplectella
A
Venus flower basket
2
Q
Hyalonema
A
Glass rope sponge
3
Q
Leucosolenia
A
Primitive sponge
4
Q
Spongilla
A
Freshwater sponge
5
Q
Euspongia
A
Bath sponge
6
Q
Cliona
A
Boring sponge (Enemy of pearl industry)
7
Q
Link between porifera and protozoa
A
Proterospongia
8
Q
Totipotent cell of sponge
A
Archeocyte
9
Q
Food storing cell
A
Thesocyte
10
Q
Food supplying cell (Nurse cell)
A
Trophocyte
11
Q
Ascon type water canal system
A
- Most primitive
- Lined by choanocyte cells
Eg. Leucosolenia, Olynthus etc.
12
Q
Ancestral sponge
A
Olynthus
13
Q
Sycon type water canal system
A
- Lined with pinacocytes
Eg. Sycon, Grantia etc.
14
Q
Flattened sac sponge
A
Grantia
15
Q
Leucon type water canal system
A
- Most complex type
Eg. Spongilla, Geodia, Plakina etc.
16
Q
Internal bud in sponges
A
Gemmules (gemmulation)
17
Q
External bud in sponges
A
Gemmae (gemmation)
18
Q
Calcarea
A
- All marine
- Calcareous skeleton
- Ascon or sycon type canal system
Eg. Sycon, Leucosolenia, Grantia etc.
19
Q
Hexactinellida
A
- All marine
- Siliceous spicules (6-rayed)
- Sycon or leucon type canal system
Eg. Hyalonema, Euplectella etc.
20
Q
Demospongiae
A
- Freshwater or marine
- Spongin fibres or siliceous spicules
- Leucon type canal system
Eg. Spongilla, Euspongia etc.
21
Q
Symbiotic association in spongilla
A
Zoochlorellae
22
Q
Parenchymula larva
A
Spongilla, Leucosolenia
23
Q
Amphiblastula larva
A
Sycon
