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WorksheetsSponges
Total questions: 35
Worksheet time: 28mins
The flat cells on the outside of a sponge are:
choanocyte
amoeboid cell
spicule
pinacocyte
Structure I, where water is pumped out, is the
choanocyte
osculum
mesohyl
pore
How do sponges obtain food?
filter it from the water
grasp it with tentacles
pry it apart with tube feet
put it in their mouth with jointed legs
The small "hairs" inside the sponge that move water are called...
Flagella
Collar cells
Osculum
Pores
True/False: Sponges reproduce by both sexual and asexual reproduction.
True
False
Which type of sponge has more than one oscullum and is often the largest in size?
asconoid
synconoid
leuconoid
quatranoid
___________ are tiny hard particles that give a sponge support and can provide protection if they are made out of calcium carbonate or silica glass.
spongin
bones
buds
spicules
What is true about sponges?
They have organs
They have tissues
They have a backbone
They are animals
The part of the sponge that includes the flagella and the collar is the ________________________ cell.
Mesenchyme
Amoebocyte
Choanocyte
Hermaphrodite
True or False:
Sponges have separate sexes
True
False
most complex sponge body form with many chambers and canals and can have multiple osculum.
asconoid
syconoid
leuconoid
huh
The flagella of a choanocyte
regulates the diameter of the osculum
filters food from the water
creates currents in the water
secretes digestive enzymes
What is the large cavity in the middle of the sponge called?
osculum
ostia
spongocoel
choanocytes
Describe the water flow through the sponge.
In osculum out ostia
In ostia out osculum
Sponges are primarily sessile organisms. What does this mean?
They live permanently in one palce
They move around their whole life
Which of the following type of cell digests and distributes food for the sponge?
Choanocytes
Amoebocytes
Endodermal cells
Epidermal cells
