porifera Flashcards
1
Q
also known as
A
Sponges
2
Q
environment?
A
aquatic
3
Q
marine or freshwater?
A
mostly marine (some freshwater)
4
Q
Symmetry?
A
mostly ASYMMETRICAL ( except SYCON & LEUCOSOLENIA )
5
Q
Level of organization -
A
Cellular
6
Q
What is the transport system of Porifera called?
A
Water canal system
7
Q
What are the minute pores on the body of Porifera called?
A
Ostia
8
Q
From where does the water exit in Porifera?
A
Osculum
9
Q
What lines the spongocoel and canals in Porifera?
A
Choanocytes
10
Q
What type of digestion is present in poriferans?
A
Intracellular
11
Q
What type of fertilisation is found in sponges?
A
Internal and indirect
12
Q
Name a freshwater sponge.
A
Spongilla
13
Q
Which sponge is called the bath sponge?
A
Euspongia
14
Q
Which is a symmetrical sponge?
A
Sycon & Leucosolenia
15
Q
What is the large central cavity in sponges called?
A
Spongocoel
