Hagfish produce this substance to deter predators.
The group of amphibians that contains salamanders and newts.
What is caudata?
Reptiles, birds, and mammals are all considered this because of the characteristics of their eggs.
The defining characteristic of all birds.
What are feathers?
The most diverse phylum of invertebrates
What is Arthropoda?
This structure is used for removing metabolic waste and osmoregulation.
What is a kidney?
The structure of an amphibian heart.
What is three-chambered?
This is the function of scales and scutes.
What is protection and reduction of water loss?
The feather type used for insulation.
What are down feathers?
The phylum of invertebrates most closely related to mammals.
This is the structure used by chondrichthyes to help them with buoyancy.
What is the oil-filled liver?
Amphibians are classified as this type of evolutionary group.
What is monophyletic?
The membrane around the embryo developing in an egg.
What is the amniotic membrane?
A bird with two toes pointed forward and two toes pointed backwards.
What is a zygodactyl?
The process of fertilization for garden snails between two hermaphrodites.
What is internal fertilization of each others' eggs?
The type of scales present on slow-swimming, tough-bodied osteichthyes that live at coral reefs.
The breathing structures used for larvae and young amphibians.
What are gills?
This group of reptiles are unique to the class because of their four-chambered hearts.
What are crocodilians?
The wing type of a group of birds who are efficient at take-offs, fast turns, and quick maneuvers.
What are elliptical wings?
The correction to this FALSE statement: "All vertebrates are chordates, therefore all chordates are vertebrates."
What is "all vertebrates are chordates, but not all chordates are vertebrates"?
The group of osteichthyes that evolved into tetrapods and how this evolution can be identified visually.
What are lobe-finned fish with homologous structures?
The reason that amphibians are especially sensitive to environmental pollution.
What is smooth, glandular skin?
This morphological difference is a way to differentiate tuatara from lizards.
What are the upper jaws of a tuatara with two rows of teeth?
The cellular adaptation to make bird cells more efficient at processing and creating energy from food sources.
What are additional mitochondria?
The name and mechanism of the specialized stinging cells in cnidarians.
What are spring-loaded, venom-filled nematocysts within cnidocytes?