Exam 3 Flashcards
True or False? Invertebrates are most specious in the animal kingdom primarily due to the insects, which are in the phylum arthropoda, class insect
TRUE
What is another term for Porifera? A. Pore bearing B. Sponges C. Invertebrate D. A and C
A. PORE BEARING
What are all the following characteristics of Phylum Porifera? Select all that apply.
A. No tissues or organs
B. Asymmetrical or Radially Symmetrical
C. Mostly marine with 150 freshwater species
D most primitve of the animal kingdom
E. Filter Feeders
F. Multiple tissues
A B C D E
True or False?
To be placed in Eumetazoa you must process true tissues
TRUE
What is a filter feeder? A. Sponges B. Captures food particles suspended in the water that passes through their body C. Osculum D. A and B
D
True or False?
Amoebocytes digest food and specialize into other cells/ structures of the sponge, such as spicules
TRUE
True or False? Phlyum Cidaria (named after stinging cells, Cnidocytes)
TRUE
What are the following characteristics of the Phylum Cidaria? Select all that apply A. Diploblastic B. Polymorphic C. Radially D. Neural net E. Incomplete gut
All of the above
What is a Class Scyphoza? A. True jellyfish, medusa dominant B. Box jellies, medusa dominant C. Corals and anemones, poly and medusa D. A and B E. Corals and anemones, polyp only
A
What is a Class Cubozoa? A. True jellyfish, medusa dominant B. Corals and anemones, polyp only C. Box jellies, medusa dominant D. Alternate between poly and medusa
C
True or False?
Class Anthozoa is alternate between poly and medusa
FALSE
Class Anthozoa corals and anemones are poly only
True or False?
Class Hydrozoa alternate between poly and medusa
False
polyp dominant
What are Bilaterians? A. Bilaterally symmetrical B. Tripoblastic C. Neural net D. A and B
D
Bilaterians are Bilaterally symmetrical and tripoblastic, which means we have to start paying attention to their celomic cavity
True or False?
Trochophore is a larval stage
True
True or False?
Phylum Platyhelminthes are flat worms
True
What are characteristics of Phylum Platyhelminthes? select all that apply. A. Acoelomate B. Gastrovascular cavity ( mouth = anus) C. Protenephridia D. Dorsoventrally flattened E. Tissues regenerate in planarians F. How do tapeworms feed G. A, B, C, and D H. Triploblastic, very primitive, do not have a body cavity
A B C D E F H
True or False?
Tissues do not regenerate in planarians
FALSE
Tissues regenerate in planarians
True or False?
Gatrovascular cavity is mouth = anus?
TRUE
True or False?
Ectoprocs are colonial and can be reef builders
TRUE
They are sessile, hard body parts, build reefs
What are Brachiopods? A. Colonial B. Reef builders C Radula D. Shells dorsal & ventral E. A and D
D
Brachiopods are shells dorsal and ventral instead of lateral like clams
What are the 4 defining characteristics of animals?
A. Ingestive Heterotrophs
B. Multicellular
C. Cells lack a cell wall
D. Nervous tissue and muscle tissue is unique to animals
True or False?
Sponges are filter feeders capturing food particles suspended in the water
True
True or False?
Sponges are not filter feeders
False
Sponges are filter feeders
How do tapeworms feed? A. Scolex B. They absorb nutrients directly from the host’s intestine C. Mouth D. All of the above E. Gastrovascular cavity
B
They do NOT have a mouth or gastrovascular cavity, they absorb the nutrients directly from the hosts intestine 😁