Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
Radula |
A rasping tongue like organ that is found in all mollusks except bivalves |
|
Lions Mane |
The largest known species of jellyfish |
|
Valve |
Another term for a mollusks shell |
|
Darwin |
The father of evolution |
|
Dimorphism |
Term referring to organisms with two different body forms |
|
Trochophore |
The free swimming larvae that emerges from the egg in many mollusks |
|
Ephyrae |
Immature eight armed free swimming medusae formed from strobilization |
|
Redwood |
The nickname of the giant barrel sponge |
|
Gemmules |
Internal bids which can help sponges survive harsh conditions; a type of asexual reproduction |
|
Osculum |
Exit opening at the top of a sponge |
|
Prismatic |
The middle layer of the mollusks shell |
|
Spicules |
Needle like structures that make up the skeleton of many sponges |
|
Ctenedia |
Modified gills presented in many aquatic mollusks; feathery or comb like structures used for respiration |
|
Adductor |
Strong muscles which extend between the shells to tightly hold a bivalves shell closed |
|
Cephalopoda |
Distinct head, ex - squid |
|
Asconoid |
The simplest sponge body form in which choanocytes lie in a large chamber called spongecoel |
|
Calcarea |
Class of sponges in which the spicules have 3 or 4 rays |
|
Soft |
The term mollusks means this |
|
Sessile |
Adult sponges that can’t move are referred to as sessile |
|
Ocelli |
Sensory structures used for light reception |
|
Radial |
Sea anemones have this type of symmetry |
|
Asymmetry |
Sponges have this type of symmetry |
|
Evolution |
When things change over massive expanses of time due to random mutations |
|
Stomach foot |
Gastropod |
|
Mantle |
A membranous sheath of skin extending down on each side of the body , protecting the soft parts |