This is the thinnest grade of porifera
Asconoid
True
3
This organ secretes the shell in many Mollusca
Mantle
What is the shaded black portion called?
Umbo
This class of sponge has a calcareous skeleton
Calcarea
What part of the cnidarian life stage is this?
Ephyra
What are these body segments called?
Proglottids
What is an operculum?
The "door" to the snail's shell
What is this?
Radula
These cell types deposit sclerids within the mesenchyme
Sclerocytes
The cell that harbors the nematocyst is called...
Cnidocyte
Class Cestoda have hook-like mouths called
Scolex
What is the purpose of labial palps?
They assist with feeding
Where are pinacocytes found?
On the outside of the sponge
This class consists of sponges made out of silica, and are essentially made of glass
Hexactinellida
Scyphozoa are dominant in what life stage?
Medusa
What do flame cells do?
Excrete waste
What is this called?
Trochophore
What grade is this sponge?
Leuconoid
What is this sponge grade?
Syconoid
Anemones and Corals belong to what class?
Anthozoa
Individuals belonging to Class Trematoda are commonly called...
Flukes
Which Class has 8 valves?
Polyplacophora
How will I ace this exam?
Review your Lab packets and study!