All members of Phylum Chordata share this feature/characteristic:
What is a notochord?
Water moves over the surface of these structures to accomplish gas exchange in fish.
What are gills?
All amphibians belong to this Phylum.
What is Chordata?
The reason all amphibians are still in someway dependent on aquatic environments at some stage of their life cycle:
What is: They have to return to the water to lay their eggs, which are soft and jelly-like, otherwise they would dry out?
In addition to lungs & gills, many amphibians also breathe through their _______________________.
What is skin?
Superclass Gnathostoma includes all fishes that have this feature/characteristic:
What are jaws?
This structure is used to regulate buoyancy in fish, and later evolved into lungs in terrestrial vertebrates.
What is the swim bladder?
All ambhibians belong to this taxonomic Class:
What is Amphibia?
Most amphibians are (carnivores or herbivores) as adults and (carnivores or herbivores) as larvae.
What is carnivores as adults and herbivores as larvae?
Named after the Latin word for "sewer" this is the structure through which liquid & solid waste, as well as reproductive gametes, exit the body of amphibians, reptiles, & birds.
What is cloaca?
What is Chondrichthyes?
Most fish reproduction occurs: (externally/internally)
What is Anura?
This is the largest organ of the body in a frog and consists of three lobes.
What is the liver?
This ancient lobe-finned fish known first through the fossil record was thought to be extinct for centuries until being rediscovered in modern times.
What is the coelocanth?
Class of fish that includes ray-finned fish (like the perch for example).
The structure the probe is pointing to on the perch.
What is the dorsal fin?
Newts and Salamanders belong to this taxonomic Order:
Mate selection in frogs & toads vs. mate selection in salamanders and newts in that:
What is: frogs & toads select mates by auditory cues & tactile cues, while salamanders & newts select mates by visual & chemical cues?
Likely common ancestor of terrestrial amphibians that lived 365 mya:
What is Ichthyostega?
Class that includes lobe-finned fish (such as lungfish & the coelocanth) and the earliest ancestor(s) of modern vertebrates.
What is Sarcopterygii?
The hardened flap of tissue that covers and protects the gills of bony fish is called the:
What is operculum?
Caecilians (legless amphibians) belong to this taxonomic Order:
What is Gymnophiona?
Small, green, and pea-like, this organ sits underneath the liver and stores and concentrates bile.
What is the gallbladder?
The discovery of this fossil species, sometimes referred to as a "fishapod" is thought to be one of the first terrestrial vertebrates, and shared characteristics with both fish and amphibians.
What is Tiktaalik?