How to Identify and Classify Frogs - Exam
  • 1. What is the primary characteristic used to initially identify a frog?
A) Body shape and size
B) Toe webbing extent
C) Call frequency
D) Eye color
  • 2. Which of these is NOT a common feature to observe when identifying frogs?
A) Tympanum size
B) Dietary habits
C) Presence of parotoid glands
D) Skin texture
  • 3. What is a key difference between frogs and toads?
A) Skin texture (smooth vs. warty)
B) Diet (insectivorous vs. herbivorous)
C) Size (small vs. large)
D) Habitat (aquatic vs. terrestrial)
  • 4. Parotoid glands are most useful for identifying what?
A) Leopard frogs
B) Poison dart frogs
C) Toads
D) Tree frogs
  • 5. Toe webbing is primarily related to a frog's...
A) Climbing ability
B) Defense mechanisms
C) Aquatic lifestyle
D) Camouflage effectiveness
  • 6. The tympanum is directly related to what sense?
A) Smell
B) Sight
C) Hearing
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) Toe pads for climbing
B) Dorsolateral ridges
C) Bright coloration as warning
D) Sharp teeth
  • 9. The term 'dorsolateral ridges' refers to features on a frog's...
A) Legs
B) Back
C) Head
D) Belly
  • 10. What is aposematism in frogs?
A) Mimicry of other animals
B) Camouflage
C) Hibernation
D) Warning coloration
  • 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) Ask a random person
C) Guess based on color
D) Consult a field guide
  • 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 type of toe webbing
B) A bump on the hind foot
C) A bone in the leg
D) A skin gland
  • 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) 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) Ranidae (True Frogs)
B) Dendrobatidae (Poison Dart Frogs)
C) Myobatrachidae (Australian Frogs)
D) Mantellidae (Malagasy Frogs)
  • 17. What is the primary purpose of frog calls?
A) Navigating in the dark
B) Warning of predators
C) Attracting mates
D) Hunting prey
  • 18. Which body part is most often used to determine sex in adult frogs?
A) Thumb pads
B) Leg length
C) Eye color
D) Tongue length
  • 19. Which frog family is known for its bright colors and toxic skin secretions?
A) Ranidae
B) Bufonidae
C) Dendrobatidae
D) Hylidae
  • 20. What is 'amplexus'?
A) Frog camouflage
B) Mating position of frogs
C) Frog hibernation
D) Frog metamorphosis
  • 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 water
B) Living in caves
C) Living underground
D) Living in trees
  • 23. What physical trait is useful for distinguishing between a Pickerel Frog and a Leopard Frog?
A) Presence of webbing
B) Overall color
C) Leg length
D) Shape of spots
  • 24. Which of the following is NOT a method frogs use to protect themselves?
A) Camouflage
B) Echolocation
C) Playing dead
D) Poison
  • 25. The mental health of frog is checked by:
A) NA
B) Therapists
C) Psychologists
D) Psychiatrists
  • 26. What is the function of the nictitating membrane?
A) Enhances night vision
B) Detects prey movement
C) Protects the eye underwater
D) Helps with camouflage
  • 27. Which family of frogs is often referred to as 'true toads'?
A) Bufonidae
B) Pipidae
C) Hylidae
D) Ranidae
  • 28. Which of these anatomical features is NOT useful in frog classification?
A) Shape of the tongue
B) Structure of the vertebral column
C) Size of the liver
D) Arrangement of teeth
  • 29. What is the most important factor in identifying a frog species by its call?
A) Habitat where the call is heard
B) Time of day of the call
C) Call volume
D) Call structure and pattern
  • 30. What is the term for the process where a tadpole transforms into a frog?
A) Mimicry
B) Aestivation
C) Amplexus
D) Metamorphosis
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