Most reptiles are:

viviparous, ovoviviparous, oviparous

The scales of reptiles originate in which skin layer?

dermis, epidermis

Which of the following do ALL turtles lack?

sternum, teeth, both of the above, neither of the above

Which of the following lack external ear openings?

all snakes, all lizards, both, none

Scutes are found in:

snakes only, snakes and some lizards, snakes lizards and crocodillians

Which of the following crocodilians is/are absent in the natural environments of the continental United States?

gavials, caimans, both, neither

How often a snake molts is directly related to the snake's

age, gender, growth rate, sexual activity

_?_ reptiles have external fertilization of eggs.

all, some, no

The reptilian Order Squamata includes:

snakes only, lizards only, both snakes and lizards, neither snakes or lizards

Which of the following has cloaca?

reptiles, birds, both neither

Filoplume feathers are used primarily for:

adornment and communication, warmth, flight, trapping air so the bird can float

A urinary bladder is _?_ found in birds.

always, seldom, never

Generally there is _?_ relationship in birds between pulse rate and body size.

no, an inverse, a direct

Which of the following reptiles always have teeth that fit into sockets in the jaw (thecodont teeth)?

snakes, turtles, crocodilians, lizards

Which turtles tend to have the most reduced (in size and weight) plastron?

marine turtles, tortoises, terrapins

Skin secretions from integumentary glands are relatively _?_ in reptiles and _?_ in birds.

rare;common, common;common, common;rare, rare;rare

The scales of reptiles are _?_ in origin; those of fish are _?_.

dermal; epidermal, epidermal;dermal, dermal;dermal, epidermal; epidermal

Which of the following reptiles have four-chambered hearts?

turtles, lizards, alligators, tuataras, snakes, all, none

Compared to the skull of turtles, the skulls of snakes and lizards are _?_ ossified.

much more, much less, equally well