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
4 characteristics of cnidarians. |
Dimorphism Radial symmetry Diploblastic Sting |
|
_______ sponges appear to be larger versions of ascanoids, still having just a single osculum. However, the body wall is generally thicker and more complex with incurrent canals rather than simple pores. |
Sycanoid |
|
_______ sponges are the most complex in design in that not all the chambers are flagellated. These sponges are the best adapted to increase sponge size. |
Leucanoid |
|
_______ sponges have the simplest type of organization. Small and tube-shaped, water enters the sponge through dermal pores and flows into the atrium. |
Ascanoid |
|
How are intestinal platyhelmintheses protected from harsh digestive juices? |
Using teguments, they are able absorb nutrients and block out digestive fluids. |
|
Where does mature female schiztosome live and why? |
Inside a groove in the male because otherwise finding a mate would be difficult. |
|
Lives mostly in marine environments |
Turbellaria |
|
Main body mass is composed of proglottids |
Cestoda |
|
Parasitic flukes of various vertebrates, maybe endoparasites or ectoparasites |
Trematoda |
|
Mouth located along mid-ventral line of organism |
Turbellaria |
|
Endoparasite of human and other vertebrates |
Cestoda |
|
Mostly carnivores, feeding on smaller invertebrates |
Turbellaria |
|
Hermaphroditic, but do not self fertilize |
Turbellaria |
|
Totally dependent on host for nutrition, lack digestive track |
Cestoda |
|
Snail is first intermediary host, then fish, then final host |
Trematoda |
|
Usually swim or crawl by cilliary propulsion, sometimes by waves of muscle contraction |
Turbellaria |
|
What is a choanoflagellate, and why is it evolutionarily important? |
Flagellated aquatic eukaryote Ancestor of sponges |
|
Sponge |
Small Calcium carbonate Ascanoid, Leucanoid, Sycanoid
Scypha Leucosolenia |
|
Sponge
Class Demospongiae |
Largest class Monaxel & tetraxel spicules Leucanoid
Bath sponge- Spongilla
|
|
Sponge
Class Hexactinellida |
"glass sponge" sycanoid or leucanoid
Venus flower basket |
|
Hydrozoa |
Hydra Obelia Man-o-war |
|
Scyphozoa |
Aurelia Cassiopeia |
|
Cubozoa |
Box jellyfish |
|
Anthozoa |
Sea anemone Sea fan Corals |
|
Describe reproduction in Hydra |
Asexual budding |