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Frog: digestive, circulatory, respiratory, nervous and reproductive systems

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Every question from past board papers on Frog: digestive, circulatory, respiratory, nervous and reproductive systems, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog ?

    4 marks · See worked answer →

  2. In frog, the Renal portal system is a special venous connection that acts to link :

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  3. Frogs respire in water by skin and buccal cavity and on land by skin, buccal cavity and lungs. Choose the correct answer from the following :

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NEET UG 2023 question paper (official, booklet G6)

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  1. Once the undigested and unabsorbed substances enter the caecum, their backflow is prevented by-

    4 marks · See worked answer →

NEET UG 2022 question paper (official, booklet R6)

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  1. Which of the following functions is not performed by secretions from salivary glands ?

    4 marks · See worked answer →

NEET UG 2021 question paper (official, booklet M4)

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  1. Which of the following characteristics is incorrect with respect to cockroach ?

    4 marks · See worked answer →

  2. Following are the statements about prostomium of earthworm.

    (a) It serves as a covering for mouth.

    (b) It helps to open cracks in the soil into which it can crawl.

    (c) It is one of the sensory structures.

    (d) It is the first body segment.

    Choose the correct answer from the options given below.

    4 marks · See worked answer →

NEET UG 2018 question paper (official, booklet EE)

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  1. Which of the following features is used to identify a male cockroach from a female cockroach ?

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NEET UG 2017 question paper (official, booklet B)

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  1. Select the correct route for the passage of sperms in male frogs :

    4 marks · See worked answer →

  2. Frog's heart when taken out of the body continues to beat for sometime.

    Select the best option from the following statements.

    (a) Frog is a poikilotherm.

    (b) Frog does not have any coronary circulation.

    (c) Heart is "myogenic" in nature.

    (d) Heart is autoexcitable.

    Options :

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. In the stomach, gastric acid is secreted by the :

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  2. Which of the following guards the opening of hepatopancreatic duct into the duodenum ?

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