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How to Identify and Classify Frogs - Exam
Contributed by: Wallis
  • 1. What is the primary characteristic used to initially identify a frog?
A) Toe webbing extent
B) Eye color
C) Call frequency
D) Body shape and size
  • 2. Which of these is NOT a common feature to observe when identifying frogs?
A) Presence of parotoid glands
B) Tympanum size
C) Skin texture
D) Dietary habits
  • 3. What is a key difference between frogs and toads?
A) Habitat (aquatic vs. terrestrial)
B) Diet (insectivorous vs. herbivorous)
C) Skin texture (smooth vs. warty)
D) Size (small vs. large)
  • 4. Parotoid glands are most useful for identifying what?
A) Leopard frogs
B) Toads
C) Tree frogs
D) Poison dart frogs
  • 5. Toe webbing is primarily related to a frog's...
A) Camouflage effectiveness
B) Aquatic lifestyle
C) Defense mechanisms
D) Climbing ability
  • 6. The tympanum is directly related to what sense?
A) Smell
B) Hearing
C) Sight
D) Taste
  • 7. How many families of frogs are generally recognized?
A) Exactly 100
B) Approximately 10
C) Around 5
D) Several dozen
  • 8. What is a common feature of tree frogs?
A) Bright coloration as warning
B) Dorsolateral ridges
C) Toe pads for climbing
D) Sharp teeth
  • 9. The term 'dorsolateral ridges' refers to features on a frog's...
A) Head
B) Legs
C) Back
D) Belly
  • 10. What is aposematism in frogs?
A) Mimicry of other animals
B) Camouflage
C) Warning coloration
D) Hibernation
  • 11. What is the most accurate way to identify frogs in a particular location?
A) Ask a random person
B) Consult a field guide
C) Guess based on color
D) Listen to its croak and look it up on YouTube
  • 12. What does 'dimorphism' refer to in frog identification?
A) Differences between species in the same genus
B) Differences between juveniles and adults
C) Differences in size of the tympanum.
D) Differences between males and females
  • 13. What is a 'metatarsal tubercle'?
A) A bump on the hind foot
B) A skin gland
C) A bone in the leg
D) A type of toe webbing
  • 14. What are 'cloacal openings' used for?
A) Breathing
B) Hearing
C) Smelling
D) Waste and reproduction
  • 15. What is a good first step when trying to identify a frog?
A) Immediately check its toe webbing
B) Determine its habitat
C) Dissect it for anatomical features
D) Listen intently for its call
  • 16. Which of the following is a North American frog family?
A) Mantellidae (Malagasy Frogs)
B) Dendrobatidae (Poison Dart Frogs)
C) Myobatrachidae (Australian Frogs)
D) Ranidae (True Frogs)
  • 17. What is the primary purpose of frog calls?
A) Hunting prey
B) Warning of predators
C) Attracting mates
D) Navigating in the dark
  • 18. Which body part is most often used to determine sex in adult frogs?
A) Leg length
B) Eye color
C) Tongue length
D) Thumb pads
  • 19. Which frog family is known for its bright colors and toxic skin secretions?
A) Bufonidae
B) Dendrobatidae
C) Hylidae
D) Ranidae
  • 20. What is 'amplexus'?
A) Frog camouflage
B) Frog metamorphosis
C) Mating position of frogs
D) Frog hibernation
  • 21. The size and prominence of the ______ can help to determine if a frog is male or female.
A) Nictitating Membrane
B) Metatarsal Tubercle
C) Tympanum
D) Vent
  • 22. What does 'arboreal' mean in relation to frog habitat?
A) Living in caves
B) Living in trees
C) Living underground
D) Living in water
  • 23. What physical trait is useful for distinguishing between a Pickerel Frog and a Leopard Frog?
A) Leg length
B) Presence of webbing
C) Shape of spots
D) Overall color
  • 24. Which of the following is NOT a method frogs use to protect themselves?
A) Echolocation
B) Camouflage
C) Poison
D) Playing dead
  • 25. The mental health of frog is checked by:
A) Psychiatrists
B) Therapists
C) Psychologists
D) NA
  • 26. What is the function of the nictitating membrane?
A) Helps with camouflage
B) Detects prey movement
C) Enhances night vision
D) Protects the eye underwater
  • 27. Which family of frogs is often referred to as 'true toads'?
A) Pipidae
B) Bufonidae
C) Hylidae
D) Ranidae
  • 28. Which of these anatomical features is NOT useful in frog classification?
A) Arrangement of teeth
B) Size of the liver
C) Structure of the vertebral column
D) Shape of the tongue
  • 29. What is the most important factor in identifying a frog species by its call?
A) Call structure and pattern
B) Call volume
C) Habitat where the call is heard
D) Time of day of the call
  • 30. What is the term for the process where a tadpole transforms into a frog?
A) Mimicry
B) Metamorphosis
C) Amplexus
D) Aestivation
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