Cnidaria
You slap an Metridium senile and thin, white threads shoot out of the body column, what are these called?
Acontia
What is the name for the structural system in Phylum Porifera?
Spicules/Spongin
What is the Class of Phylum Platyhelminthes that are free-living?
Class Turbellaria
What is the name of the fluid cavity that houses the eversible proboscis?
Rhynchocoel
What structure does Phylum Ctenophora use to direct food and swim?
Ctenes
You tear off a tentacle of a member of Phylum Cnidaria and find they are hollow, what Class does this member likely belong to?
Anthozoa
What Class of Phylum Cnidaria makes up 80-90% of all sponges
Class Demospongiae
Phylum Platyhelminthes can move in multiple different ways, name two
Ciliated surface/Pedal waves/Looping (duoglands)/Swimming
Phylum Nemertea can move in multiple ways, name two of them
Musculature/Swimming/Ciliated epidermis/Peristaltic movement
Members of Phylum Ctenophora have eight of these structures that are extensions of the gastrovascular system, run in the oral-aboral direction, and house the gonads
Meridional canals
The cell type that is unique to Phylum Cnidaria?
Nematocytes/Cnidocytes
The cell type(s) that is unique to Phylum Porifera?
Choanocytes/Amoebocytes
What is the name for the primitive excretory system in many simple invertebrates, including Phylum Platyhelminthes?
Protonephridia
Class Hoplonemertea contains Order Monostilifera and Order Polystilifera, what is one of the key differences between these two Orders as hinted by their names
Stylet number
Phylum Ctenophora are hermaphrodites, under what feature are their gonads
Ctenes
A Cnidarian is trying to take revenge on you for slapping it, name one of two firing mechanisms might it use to avenge itself (or both if you wanna show off)?
Tension/Osmotic Pressure
Where would you most likely find members of the genus Cliona here in Oregon?
Inside rocks
Phylum Platyhelminthes have no respiratory or circulatory systems, how do they breath?
Gas exchange/Diffusion
What is a defining characteristic of Class Pilidiophora, hinted by its name?
Pilidium larvae
What organ do members of Phylum Ctenophora use to maintain balance in the water column?
Apical sensory organ
Some pneumatophores, gonozooids, gastrozooids, nectophores, and dactlyzooids walk into a bar and agree to form an organism, what is this lifestyle called?
Colonial polymorphism
Two of the three sponge body forms, asconoid and syncnoid, only occur in Class Calcerea, what is the third body form?
Leuconid
Give an example of a commensal member of Phylum Platyhelminthes (scientific name)
Syndesmis franciscana
Many members of Phylum Nemertea produce toxins, name one of the toxins they can produce
TTX+similar toxins
A species of Phylum Ctenophora was introduced to the Black Sea by accident in the 1980s and wrecked havoc on the local ecosystem, specially the anchovy population, what is the species?
Mnemiopsis leidyi