Chapter 30 - Quiz Flashcards
(21 cards)
What does ectothermic mean?
a. Warm-blooded
b. Having an insulating layer of skin
c. Cold-blooded
d. Maintaining a high body temperature
c. Cold-blooded
What is the scientific name of the African clawed frog?
a. Rana catesbeiana
b. Xenopus laevis
c. Xenopus tropicalis
d. Ambystoma tigrinum
b. Xenopus laevis
Why should frogs be handled with wet gloves?
a. So the mucous coat doesn’t rub off.
b. So the frog’s skin doesn’t stick to the glove and tear.
c. So the frog can maintain its body heat.
d. So the frog will remain clean.
a. So the mucous coat doesn’t rub off.
How is a frog picked up?
a. Place your fingers behind the frog’s front legs, thumb up under the frog’s chin.
b. Grasp the frog by the foot.
c. Cradle the frog in your hand with your fingers between and around the frog’s legs.
d. Wrap your fingers around the frog’s body.
c. Cradle the frog in your hand with your fingers between and around the frog’s legs.
The process of transforming from an aquatic animal with gills into a terrestrial animal with lungs is called:
a. terreforming.
b. pneumotransition.
c. gill depletion.
d. metamorphosis.
d. metamorphosis.
In addition to their lungs, most adult amphibians also absorb oxygen through their
a. large intestine.
b. webbed feet.
c. skin.
d. cloaca.
c. skin.
Which amphibians are tongueless and must direct food into their mouths with their front legs?
a. Tiger and leopard salamanders
b. African and Western clawed frogs
c. Leopard frogs and bullfrogs
d. Axolotls and newts
b. African and Western clawed frogs
Regarding their diet, adult amphibians are:
a. carnivores.
b. omnivores.
c. herbivores.
d. frugivores.
a. carnivores.
In African and Western clawed frogs, what characteristics can be used to identify adult males from adult females?
a. Males are generally pear-shaped.
b. Males are generally larger.
c. Males have nuptial pads on their inner forearms.
d. Males have a protrusion of papillary tissue near the cloaca.
c. Males have nuptial pads on their inner forearms.
What size is the tympanic membrane of female bullfrogs?
a. Half as large as the male’s
b. Twice as large as the eye
c. Twice as large as the male’s
d. Variably sized
c. Twice as large as the male’s
In frogs, what does the tympanic membrane do?
a. It serves as the external ear.
b. It aids in mating.
c. It becomes larger or smaller according to the external temperature.
d. It interprets infrared signals.
a. It serves as the external ear.
When handling amphibians, what PPE should be worn?
a. Dry leather gloves
b. Wet, powder-free gloves
c. Wire mesh gloves
d. Shoulder-length gloves
b. Wet, powder-free gloves
What method is preferred for sanitizing the primary enclosures of amphibians?
a. Manual cleaning without detergents or disinfectants followed by autoclaving
b. Manual cleaning with detergents and disinfectants
c. Automated cleaning in a cage washer with detergents and a 180°F final rinse
d. No sanitization
a. Manual cleaning without detergents or disinfectants followed by autoclaving
What step is necessary when removing amphibians from shipping crates?
a. Place in a series of increasingly cool water so their body temperature slowly adjusts.
b. Mix new water with shipping water to avoid causing them to go into shock.
c. Apply artificial mucous coat until they are able to make their own again.
d. Rinse thoroughly with dechlorinated water to remove any feces.
d. Rinse thoroughly with dechlorinated water to remove any feces.
What would be the appropriate housing density for newly hatched tadpoles?
a. 5 per liter of water
b. 50 per liter of water
c. 100 per liter of water
d. 500 per liter of water
b. 50 per liter of water
Which drug is appropriate for euthanasia of amphibians?
a. Lidocaine
b. Tricaine methanesulfonate
c. Isoflurane
d. CO2
b. Tricaine methanesulfonate
In salamanders, what is neoteny?
a. When a salamander reaches maturity without undergoing metamorphosis
b. A deformed (mutant) salamander
c. A newborn salamander
d. The process of a salamander giving birth
a. When a salamander reaches maturity without undergoing metamorphosis
Regarding their diet, larval amphibians are:
a. carnivorous.
b. herbivorous.
c. omnivorous.
d. frugivorous.
c. omnivorous.
After feeding amphibians live feed, why should technicians leave the room?
a. Amphibians do not like to eat in front of people.
b. Amphibians may be distracted by the movement in the room.
c. Amphibians require total silence while eating.
d. Movement in the room can scare the live feed into hiding from the amphibians.
b. Amphibians may be distracted by the movement in the room.
In general, what is thought to be good environmental enrichment for amphibians?
a. Hiding places
b. Heat lamps
c. Resting boards
d. Balls and toys
a. Hiding places
Why are amphibians particularly sensitive to toxic substances?
a. Their digestive tract is primitive.
b. Their nervous system reacts strongly to chemicals.
c. Their genes quickly mutate.
d. Their skin is highly porous.
d. Their skin is highly porous.
