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- 1. Multiple Choice
1. Which of these is a picture of a choanocyte?
- 2. Multiple Choice
2. The large opening at the top of the sponge is called the
Osculum
Spicule
Porocyte
Spongocoel
- 3. Multiple Choice
3. Which of the following is NOT what a sponge skeleton can be made of?
Spongin
Cnidocyst
Silica
Spicule
- 4. Multiple Choice
4. Choanocytes are also known as _____.
epithelial cells
collar cells
pore cells
amoeboid cells
- 5. Multiple Choice
5. Sponges feed by filtering _____________ out of the water column as it passes through the spongocoel.
small fish
oxygen
macro algae
plankton
- 6. Multiple Choice
7. What are stinging organelles with a coiled thread found in the tentacles which are used to capture prey or defend against predators?
cnidocytes
nematocytes
choanocytes
pinacocytes
- 7. Multiple Choice
This picture of a sea anemone would represent which form of a Cnidarian?
Medusa
Larval
Polyp
Free-swimming
- 8. Multiple Choice
Ctenophora is commonly called as:
Flatworms
Sea Anemone
Comb Jellies
Cnidaria
- 9. Multiple Choice
The function of Flame cells are:
Excretion and Osmoregulation
Digestion and excretion
Anchorage and excretion
- 10. Multiple Choice
Cnidarians were the first animals to develop _____________ cells so they could react to their environment.
epidermis
nerve
collar
gastrodermis
- 11. Multiple Choice
Which phylum first developed a mouth with a central digestive area due to the two cell layers, endoderm and ectoderm.
Porifera
Cnidaria
Ctenophora
Platyhelminthes
- 12. Multiple Choice
Platyhelminthes are best described as
Flatworms,triploblastic,acoelomate animals
Flatworms,diploblastic,acoelomate animals
Flatworms,triploblastic,Pseudocoelomates
Flatworms,triploblastic,coelomates
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