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- 1. Multiple Choice
What type of symmetry do sponges (Porifera) have?
asymmetrical
radial
bilateral
medial
- 2. Multiple Choice
What is the outer most layer of Porifera?
epidermis
gastrodermis
mesoglea
spongin
- 3. Multiple Choice
The level of organization cnidarians have is...
specialized cells
tissues
organs
organ systems
- 4. Multiple Choice
What type of symmetry do cnidarians have?
asymmetrical
radial
bilateral
medial
- 5. Multiple Choice
The hard "skeleton" structures in a sponge are called...
Spongin
Amoebocytes
Spicules
Nematocysts
- 6. Multiple Choice
Which of the following is a correct description of the Cnidarian digestive tract?
A complete digestive tract consisting of two openings.
A complete digestive tract consisting of one opening.
An incomplete digestive tract consisting of two openings.
An incomplete digestive tract consisting of one opening.
- 7. Multiple Choice
What phylum has two different forms that exist which are called the medusa and the polyp?
Phylum Porifera
Phylum Cnidaria
- 8. Multiple Choice
Which of the following is a correct description of the polyp body form?
It is sessile and the tentacles and mouth point downward.
It is sessile and the mouth and tentacles point upward.
It is mobile and the tentacles and mouth point downward.
It is mobile and the tentacles and mouth point upward.
- 9. Multiple Choice
What are the organelles inside the stinging cells that inject paralyzing toxins into their prey?
pinacocytes
lysomatocyts
choanocytes
nematocysts
- 10. Multiple Choice
Cnidarians can reproduce...
sexually only
asexually only
both sexually and asexually
neither sexually or asexually
- 11. Multiple Choice
What kingdom do invertebrates such as the Porifera and Cnidaria belong?
Plantae
Porifera
Animalia
Fungi
- 12. Multiple Choice
Porifera and Cnidaria can reproduce asexually through a process called...
replication
amphiblastula
fusion
budding
- 13. Multiple Choice
Which part of the sponge body is a large opening at the top of the central cavity through which water leaves the sponge?
meenchyme
Spongecoel
Osculum
Ostia
- 14. Multiple Choice
What part of the sponge body is the openings along the sponge's body that allow in water?
osculum
spongecoel
mesenchyme
pores
- 15. Multiple Choice
Members of the what phylum include sea anemones and coral?
Animalia
Cnidaria
Porifera
Plantae
- 16. Multiple Choice
What creates the flow of water in a sponge?
pores
osculum
collar cells
amoebocytes
- 17. Multiple Choice
Sponges can reproduce asexually by budding and creating...
spicules
larvae
amoebocytes
gemmules
- 18. Multiple Choice
Which live on land?
porifera
cnidaria
both
neither
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