Checklist: Which of the following Oklahoma turtles are considered "land" turtles?

Which of the following is the smallest venomous snake in Oklahoma?

The cottonmouth and water moccasin are two very different species?

Which of the following is an eardrum-like structure, can be external, that is responsible for hearing?

What structure in an amphibian is responsible for pulling air into the lungs and pushing air out of the lungs?

Many vertebrates (not fish) have a circulatory system in which blood is pumped separately to pulmonary and systemic circuits. What term best describes this type of circulatory system?

What are the specialized pigment cells found in the skin of mollusks and amphibians?

What term describes respiration that occurs across skin? This is a very important type of respiration for amphibians.

What is the name given to the two teeth found in the roof of a frog's mouth? These teeth are used to hold prey.

What are the tiny teeth along upper jaw of frog's mouth?

What term best describes animals that have 4 limbs? Most are terrestrial.

Exit for the digestive, excretory, and reproductive systems

Young develop in eggs inside the female's body (applies to some sharks as well as many snakes like boas and pit vipers)

Young develop in eggs in the environment (like birds, turtles, and many other animals)

Which of the following best describes adult amphibians like frogs and salamanders?

Paedomorphic salamander that retains external gills into adulthood and never goes through metamorphosis, can be found in Oklahoma

What is the largest frog in the United States? This frog is also Oklahoma's state amphibian.

What protein makes up hair, feathers, nails, and scales?

Transparent scale covering each eye of a snake

What body system does a turtle's shell belong to?

What structures make up a significant portion of a turtle's shell?

How do turtles breathe?

Mobile skull with movable joints in the palate and across the roof of a snake's mouth? Allows snakes to eat relatively large prey items. Also seen in lizards and birds, but their skulls are not as mobile.

Pit-like sense organ in the roof of a snake's mouth; removes scent molecules from the tongue and transmits information to the brain

What determines the sex of many reptiles including turtles, crocodilians and many lizards?

What turtle structure is represented by letter D? This structure on the belly side of turtles. The term means "breastplate."

What turtle structure is represented by letter B?

What turtle structure is represented by letter A?

What structure is represented by letter H? This is the opening that allows air to enter a snakes body and move to the lungs.

What structure is represented by letter G?

What structure is represented by letter F?

What structure is represented by letter D?

What structure is represented by letter C? This heat-seeking structure allows snakes, like copperheads and rattlesnakes, to find their prey.

What structure is represented by letter A?

What forms the outer layer of a turtle's shell?

What forms the inner layer of a turtle's shell?

What percentage of all reptiles are lizards and snakes?

S-shaped snake movement; very fast and efficient; typical snake movement

Snakes that have heat-sensitive pit organs between the nostril and eye; the majority of venomous snakes in the US are in this group of snakes

All of the snakes listed below are venomous snakes found in the US. All are pit vipers, except one. Which snake is NOT a pit viper?

What type of venom attacks the nervous system?

Structure in the mouth that allows crocodilians and mammals to breathe through the nose while the mouth is filled with food or water

Large crocodilian found in southeastern US and Central American; can be aggressive

Which of the following is a transparent, eyelid-like membrane that covers the eyes of some birds, cats, and frogs?

What turtle structure is represented by letter C? This structure forms the hard, dorsal shield of many animals.

What family do the majority of non-venomous snakes in the United States (and Oklahoma) belong to?