Which gland plays a key role in metamorphosis of frog?? tadpole?
- Thymus
- Thyroid
- Pancreas
- Adrenal
The Correct Option is B
Solution and Explanation
Top Questions on Frogs
- Select the correct route for the passage of sperms in male frogs :
- The triangular sac like structure which receives blood through the vena cava in frog is
- The phenomena of spawning and amplexus are encountered in
- Bidder's canal is found in
- The following is a diagram of the just spawned frog's egg, with the parts labelled from A to E. Identify the parts and choose the correct option from those given below
Questions Asked in AIIMS exam
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.
Reason (R) : Liberation of oxygen is due to photolysis of water.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Photosynthesis in higher plants
- Match the following column I with column II.
- AIIMS - 2019
- cloning
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- evolution
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
In the light of the above statements, choose the correct answer from the options given below- AIIMS - 2019
- Gravitation
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In eukaryotes, transcription occurs in nucleus.
Reason (R) : In bacteria, transcription and translation occurs in cytoplasm.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Transcription
Concepts Used:
Frogs
A frog is any member of a miscellaneous and largely carnivorous group of short-bodied, tailless amphibians constituting the order Anura. Frogs are extensively distributed, ranging from the tropics to subarctic regions, but the significant concentration of species diversity is in tropical rainforests. Frogs account for around 88% of enduring amphibian species. They are also one of the five most varied vertebrate orders. Warty frog species tend to be termed toads, but the divergence between frogs and toads is informal, not from taxonomy or evolutionary history.
An adult frog has a stout (fat and round) body, protruding eyes, limbs folded underneath, anteriorly-attached tongue, and no tail. Frogs have glandular skin, with secretions aligning from distasteful to toxic. Their skin differs in color from well-camouflaged dappled (dots and spots) brown, grey and green to lifelike patterns of bright red or yellow and black to show toxicity and ward off predators. Adult frogs live in fresh water and on dry land and some species are adapted for living underground or in trees.
Read More: Metamorphosis: Life-Cycle of Frogs