Rana tigrina (Bull Frog) — Grade 11 Biology Quiz
Medium-difficulty multiple-choice quiz covering morphology, behaviour, habitat, and life cycle of Rana tigrina based on the provided material.
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Quiz Questions & Answers
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Question 1: Which external feature helps a male Rana tigrina produce the croaking sound during breeding?
Nictitating membrane over the eye
Parotid glands behind the head
Vocal sacs on the throat
Nuptial pads on hind toes
Question 2: Why is Rana tigrina frequently found near fresh water and damp places?
It feeds exclusively on aquatic plants
It requires saline water to lay eggs
Its skin must stay moist for cutaneous respiration
It uses water to thermoregulate by bathing in hot weather
Question 3: Which statement best explains why Rana tigrina hibernates or aestivates?
To survive extreme temperatures by becoming dormant and living on stored reserves
To migrate long distances to warmer climates
To molt skin layers and grow larger quickly
To continue active feeding during winter and summer
Question 4: Which feature distinguishes frog (Rana tigrina) from a toad (Bufo) in the provided table?
Frog has moist, smooth skin and well-developed webbed hind toes
Frog is nocturnal and hides during day
Frog has parotid glands producing poison
Frog lays eggs in long chains
Question 5: What is the main role of the nictitating membrane in frogs?
Protect the eye in water and prevent drying on land
Enhance hearing by covering the tympanum
Secrete mucus to make the skin slippery
Store eggs temporarily during spawning
Question 6: Which feeding behavior is typical of an adult Rana tigrina?
Shooting out a sticky, protrusible tongue to capture live prey
Chewing plant material extensively before swallowing
Filtering microscopic plankton like many fish
Relying solely on photosynthesis through skin pigments
Question 7: During reproduction, what term describes the male grasping the female from above in frogs?
Amplexus (false copulation)
Brooding within the cloaca
Parthenogenesis
Internal insemination
Question 8: Why is Rana tigrina commonly used for laboratory dissection and study?
It is easily available, appropriately sized, inexpensive and anatomically representative of vertebrates
Its skin secretes toxins useful for experiments
It reproduces only in captivity making observations easy
It has unique organs not found in other vertebrates