104 Phylum Porifera - The Sponges

What moves water through the sponge?

• Cilia of the choanocyte cell

• Flagella of the choanocyte cell

• Porocyte cell

• Amebocyte cell

What organization level are sponges?

• different tissue with different functions

• different organs with different functions

• different cell types with different functions

• No true organization

The large opening at the top of the sponge is called the

• Osculum

• Porocyte

• Spicule

• Spongocoel

Describe the water flow through the sponge.

• 1) In osculum and 2) out through porocytes-lined pores

• 1) Out osculum and 2) in through porocytes-lined pores

• 1) In porocytes-lined pores and 2) out osculum

• 1) Out porocytes-lined pores and 2) in osculum

How much water does a sponge need to filter to recieve one ounce of food?

• 1 ounce

• 1 liter

• 1 gallon

• 1 ton

Because sponges cannot move around they are considered ______. 

• sessile
• senile
• sedementary
• spongin

Sponges feed by ______ particles out of the water column as it passes through their pores. 

• filtering
• suspending
• consuming
• eating

cells have sticky, funnel-shaped collar of cilia to collect food particles and a flagellum that creates a water current

• amoebocyte

• ostiocyte

• pinacocyte

• choanocyte

large opening at the top of a sponge where water exits.

• ostia
• osculum
• orifice
• opening

skeleton-like structures that can be hard or soft; act as internal support and predation defense

• spicules

• spongin

• sessile

• something