A
Which condition is commonly associated with chocolate toxicity in dogs?
A) Liver failure
B) Cardiac arrhythmias
C) Hypothyroidism
B) Cardiac arrhythmias
Which species has a four-chambered stomach adapted for cellulose digestion?
A) Horse
B) Cow
C) Dog
B) Cow
This animal is known for having a highly developed regenerative ability, including limbs, spinal cord, and parts of the heart
A) Axolotl
B) Frog
C) Salamander lizard
A) Axolotl
What is the primary vector for Lyme disease in animals?
A) Mosquito
B) Tick (Ixodes species)
C) Flea
B) Tick (Ixodes species)
Which animal has the highest body temperature among common domestic species?
A) Dog
B) Cat
C) Chicken
C) Chicken
Which species has the longest gestation period among terrestrial mammals?
A) Cow
B) African elephant
C) Horse
B) African elephant
(18 to 22 months)
What is the main function of the ruminant reticulum?
A) Acid secretion
B) Filter and trap foreign objects
C) Water absorption
B) Filter and trap foreign objects
Which vitamin deficiency causes rickets in young animals?
A) Vitamin A
B) Vitamin D
C) Vitamin K
B) Vitamin D
Which animal cannot synthesize vitamin C and must obtain it from diet?
A) Cow
B) Guinea pig
C) Horse
B) Guinea pig
Which species has the strongest bite force relative to body size?
A) Crocodile
B) Hyena
C) Mantis shrimp
C) Mantis shrimp
Which animal has the highest resting heart rate among mammals listed?
A) Elephant
B) Mouse
C) Horse
B) Mouse (450-750 bpm)
Elephant (25-35) / Horse (28-40)
Which animal has a unique “mirror-like” retinal layer called the tapetum lucidum?
A) Cat
B) Pig
C) Pigeon
A) Cat
The tapetum lucidum is a reflective layer behind the retina that helps some animals see better in low light (it’s what makes eyes “glow” in the dark).
Which species has a naturally high resistance to many snake venoms?
A) Mongoose
B) Wolf
C) Bear
A) Mongoose
Mongooses are not fully immune to snake venom but possess high resistance due to mutated acetylcholine receptors, which prevent neurotoxins from binding.
Which condition is commonly called “milk fever” in cows?
A) Hypocalcemia
B) Hyperglycemia
C) Ketosis
A) Hypocalcemia
Which pathogen causes bovine spongiform encephalopathy (BSE)?
A) Virus
B) Prion
C) Bacterium
B) Prion
Which condition is characterized by excessive cortisol production in dogs?
A) Addison’s disease
B) Cushing’s syndrome
C) Hypothyroidism
B) Cushing’s syndrome
occurs when the adrenal glands overproduce cortisol, usually caused by a pituitary (80-85%) or adrenal (15-20%) tumor
Which part of the brain regulates temperature?
A) Cerebrum
B) Hypothalamus
C) Cerebellum
B) Hypothalamus
Which bone is NOT part of the forelimb in dogs?
A) Radius
B) Tibia
C) Ulna
B) Tibia
Which parasite is transmitted via fleas in cats?
A) Dipylidium caninum
B) Toxocara cati
C) Giardia
A) Dipylidium caninum
This is a tapeworm of cats and dogs transmitted through ingestion of infected fleas (usually Ctenocephalides spp.). When a cat grooms itself and swallows a flea, the parasite develops in the intestine.
Which species is most prone to gastric ulcers due to stress?
A) Pig
B) Horse
C) Sheep
B) Horse
Horses are highly prone to equine gastric ulcer syndrome (EGUS) - stress, fasting, intense exercise, and intermittent feeding
Which lab finding is most consistent with hemolysis?
A) Decreased bilirubin
B) Increased potassium
C) Increased ALT only
B) Increased potassium
Red blood cells contain high potassium levels, so hemolysis causes artificially increased serum potassium (pseudohyperkalemia).
The most common cardiac disease in small-breed dogs is:
A) Dilated cardiomyopathy
B) Mitral valve disease
C) Aortic stenosis
B) Mitral valve disease
The gestation length of a cow is approximately:
A) 150 days
B) 280 days
C) 365 days
B) 280 days
Clostridium species are typically:
A) Aerobic
B) Anaerobic
C) Facultative intracellular
B) Anaerobic
Dystocia refers to:
A) Difficult birth
B) Early puberty
C) Infertility
A) Difficult birth