Podcast
Questions and Answers
Frogs belong to the class ______ (phylum Chordata).
Frogs belong to the class ______ (phylum Chordata).
Amphibia
Adult frogs are ______ and do not have tails.
Adult frogs are ______ and do not have tails.
tailless
Frogs exhibit ______ during summer and hibernation during winter.
Frogs exhibit ______ during summer and hibernation during winter.
estivation
Frogs have highly ______ skin that absorbs water and helps in respiration.
Frogs have highly ______ skin that absorbs water and helps in respiration.
Frog skin is glandular and secretes ______ and toxic substances for defense.
Frog skin is glandular and secretes ______ and toxic substances for defense.
Flashcards
What does it mean for a frog to be cold-blooded?
What does it mean for a frog to be cold-blooded?
Frogs are cold-blooded animals, meaning their body temperature changes with the surrounding environment.
How do frogs cope with extreme temperatures?
How do frogs cope with extreme temperatures?
Frogs have a unique defense mechanism that allows them to survive extreme temperatures by entering a state of inactivity during summer (estivation) and winter (hibernation).
What makes a frog's skin special?
What makes a frog's skin special?
The outer layer of a frog's skin is very porous, allowing for water absorption and gas exchange.
How can frogs change their color?
How can frogs change their color?
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What is the tympanum and what is its function?
What is the tympanum and what is its function?
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Study Notes
Frog
- Carnivorous, tailless amphibians, widely distributed in India
- Diverse frog species globally, including the Indian bullfrog (Hoplobatrachus tigrinus)
- Vertebrates, classified under the class Amphibia (phylum Chordata)
- Cold-blooded (poikilothermic), body temperature dependent on environment
- Need to protect themselves from extreme heat and cold, through estivation and hibernation during summer and winter
- Estivation is a summer dormancy period; hibernation is a winter one
Morphology
- Larvae possess tails, adult frogs are tailless
- Stout body, differentiated into head and trunk
- External features include nostrils, protruding eyes, membranous tympanum (eardrum), slippery/warty moist skin, webbed limbs
- Highly permeable skin, functions as respiratory organ, absorbing water and oxygen
- Skin glandular, secreting mucus and toxins for predator defense
- Skin color can range from brown/green to vibrant colors
Anatomy
- Well-developed structures supporting the body plan
- Structures play a role in crucial bodily functions
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