Porifera Flashcards
1
Q
Habitat
A
Aquatic
2
Q
Marine or freshwater
A
Mostly marine
3
Q
Symmetry of adult sponges
A
Asymmetrical
4
Q
Name of the cavity present
A
Spongoceal / para gastric cavity
5
Q
Cavity lined by
A
Collar cells / choanocytes
6
Q
Cavity lined by
A
Collar cells / choanocytes
7
Q
Speciality of collar cells
A
Flagellated
8
Q
Speciality of collar cells
A
Flagellated
9
Q
Pathway of water canal system
A
Ostia»_space; spongocoel»_space; osculum
10
Q
Functions of water canal system
A
- food gathering
- respiratory exchange
- removal of waste
11
Q
Digestion
A
Intracellular
12
Q
Body skeleton is made up of
A
- spicules
- spongin fibres
13
Q
Composition of spicules
A
Calcareous or siliceous
14
Q
Composition of spongin fibres
A
Protonaceous
15
Q
Sex of sponges
A
Hermaphrodite
