Reading...
Play button
Play button
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;
7 Cards in this Set
- Front
- Back
|
Amphibia is an intermediate class between what two groups? What is its sister group?
|
Reptiles and Fishes. They are a sister group to Amniota.
|
|
|
What is interesting about the limbs of this group?
|
They are paired and used for "walking".
|
|
|
What is interesting about the skin of Amphibia?
|
Lacks epidermal structuressuch as scales, hair, or feathers. Skin = waxy, prevents dessication. Can be poisionous.
|
|
|
Ciculatory System?
|
Yes, functions similar to the human circulator system.
|
|
|
Is this group Biphasic? What is a Biphasic Life Cycle?
|
Yes. There is a free-living larval stage in water followed by a terrestrial adult stage.
|
|
|
Describe the egg of the Amphibia.
|
Lack shell or membrane. Laid in a gelatinous matrix.
|
|
|
What are its three orders? Describe each.
|
Caudata (Salamanders) - Internal fertilization. Biphasic life cycle.
Anura (frogs) - Specialized for jumping. External fertilization. Carnivorous. Gymnophiona - not important. |
