Animals with 4 legs.

Class that contains all amphibians.

One of the earliest known Devonian tetrapods, had well formed tetrapod limbs with clearly formed digits on both forelimbs and hind limbs.

Order that contains caecilians.

Order that contains frogs and toads.

Order that contains salamanders and newts.

Phylum that contains all amphibians.

Transitional fossil morphologically intermediate between lobe-finned fish and tetrapods.

Transitional fossil with a fully developed shoulder girdle, bulky limb bones, well-developed muscles, and other adaptations for terrestrial life.

Transparent membrane that covers the eye when an amphibian is in water.

Protein that makes up the skin of amphibians.

Cells that have reflective pigments.

The single exit opening for waste and reproductive cells.

Organs which filter liquid waste as urine.

Breathing structure found in many salamanders and aquatic amphibians.

Amphibian metamorphosis is controlled by this hormone.

The name amphibian means?

What time period is nicknamed the "Age of Amphibians"?

Moist skin helps amphibians breathe through their skin in a process known as?

The largest organ found in a frog's body cavity.

Adult amphibians have a 3 chambered heart and this type of blood circulation?

What thermoregulation terms best describes an amphibian?

Order name Anura means?

Order name Caudata means?

Order name Apoda means?

What fungus is blamed for causing a potentially lethal skin disease in amphibians?

Bulging eyes, long webbed hind feet, smooth or slimy skin, members of family Ranidae, lay eggs in clusters, like moist environments.

Dry warty skin, have parotid glands behind eyes, stubby bodies with short hind legs, members of family Bufonidae, lay eggs in long chains, prefer drier climates.

A state of mental and motor inactivity, characterized by extreme sluggishness but is not a total slowdown of body metabolism and functions.

Digging of deep holes in the soil below the frost line, find cracks in logs or rocks. Glucose in vital organs serves as a sort of antifreeze.

Allows survival in extreme desert conditions; dig deep into the soil and become dormant, shed several layers of skin which forms a waterproof cocoon that leaves only the nostrils exposed to the air.

Carnivorous, can be terrestrial or aquatic, breathe with lungs, gills or skin depending on species, have a 3 chambered heart with double-loop circulation, no tail, legs.

Herbivorous, aquatic, use gills, two-chambered heart with single-loop circulation, tail, no legs.

Amphibians use this mode of reproduction?