Porifera Flashcards
1
Q
Meaning of Porifera
A
Pore-bearing
2
Q
How is porifera defined?
A
Having choanocyte cells
3
Q
Type of Symmetry
A
Asymmetrical
4
Q
What cell body type?
A
Unicellular
5
Q
Nervous/Sensory
A
No nervous system; no cephalization
6
Q
Respiratory
A
Via diffusion
7
Q
Excretion
A
Via diffusion
8
Q
Internal transport
A
Via diffusion
9
Q
Reproduction
A
Sexual (monoecious) and asexual (budding)
10
Q
Pinacocytes
A
make up outside covering, some make toxins, some make spicules
11
Q
Porocytes
A
control water flow INTO sponge
12
Q
Choanocyte
A
Cells moving water/collecting food particles
13
Q
Mesohyl
A
Between pinacocytes & choanocytes; holds amoebocytes
14
Q
Spicule Classes
A
Calcarea, Hexactinellida, and Demospongiae
15
Q
Calcarea
A
Calcium carbonate spicules
