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