External Features Of The Frog Quiz

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  • 1/10 Questions

    Posterior opening of the digestive tractA. EardrumB. AnusC. SnoutD. Iris

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About This Quiz

Do you love studying animals? It's an external feature of the frog quiz that will test your knowledge about this magnificent amphibian creature. A frog is known as a member of a diverse and widely carnivorous group of short-bodied, tailless amphibians consisting of the order Anura. So, take these questions, and you will not only test your understanding of the features of the frog, but you will learn more as you have a fun time with these questions. Let's go!

External Features Of The Frog Quiz - Quiz

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  • 2. 

    The pigmented structure surrounding the pupil.A. IrisB. NostrilC. EardrumD. None of these

    Explanation
    The pigmented structure surrounding the pupil is called the iris. The iris is responsible for controlling the size of the pupil and determining the amount of light that enters the eye. It contains muscles that contract or expand to adjust the size of the pupil, allowing more or less light to enter the eye. The iris also gives the eye its color, as the pigmentation of the iris varies from person to person. Therefore, the correct answer is A. Iris.

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  • 3. 

    Flattened, triangular, blunt apex of the headA. AnusB. SnoutC. NostrilD. Cornea

    Explanation
    The flattened, triangular, blunt apex of the head is commonly referred to as the snout. The snout is a prominent feature in many animals, especially those that rely heavily on their sense of smell. It is typically elongated and contains the nostrils, which are used for breathing and detecting scents. The snout can vary in shape and size depending on the species, but it is generally a distinguishing characteristic of animals such as pigs, dogs, and elephants.

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  • 4. 

    Protruding on the dorso-lateral sides of the headA. CorneaB. EyesC. PupilD. None of these

    Explanation
    The question asks for the structure that is protruding on the dorso-lateral sides of the head. The cornea is a part of the eye, so it cannot be the correct answer. The pupil is a part of the eye, so it cannot be the correct answer. Therefore, the correct answer is Eyes, as they are the structures that protrude on the dorso-lateral sides of the head.

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  • 5. 

    Anterior opening of the digestive tractA. SnoutB. MouthC. AnusD. None of these

    Explanation
    The anterior opening of the digestive tract refers to the opening through which food enters the body. In most animals, including humans, this opening is called the mouth. The mouth is responsible for the intake of food and the initial process of digestion, such as chewing and breaking down food into smaller pieces. Therefore, it is the correct answer in this context.

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  • 6. 

    Transparent membrane above the lower eyelidA. Nictitating membraneB. NostrilC. PupilD. Anus

    Explanation
    The correct answer is "Nictitating membrane." The nictitating membrane is a transparent membrane that is located above the lower eyelid in certain animals, such as birds, reptiles, and some mammals. This membrane acts as a protective covering for the eye, helping to keep it moist and shield it from debris and other potential hazards. It can also be used to protect the eye while still allowing some vision, as it is transparent.

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  • 7. 

    Dark central oval opening seen through the corneaA. PupilB. MouthC. Nictitating membraneD. None of these

    Explanation
    The dark central oval opening seen through the cornea is known as the pupil. The pupil is responsible for controlling the amount of light that enters the eye by dilating or constricting. It appears dark because it contains no pigmentation and allows light to pass through to the retina. It is not the mouth or the nictitating membrane, which are unrelated structures.

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  • 8. 

    It is the exposed transparent part of the eye.A. MouthB. PupilC. AnusD. Cornea

    Explanation
    The cornea is the clear, transparent part of the eye that covers the iris, pupil, and anterior chamber. It acts as a protective layer and helps to focus light onto the retina, allowing us to see clearly. The cornea is responsible for about two-thirds of the eye's total focusing power. It is essential for maintaining the shape and integrity of the eye, and any damage or disease to the cornea can significantly affect vision.

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  • 9. 

    Circular membrane posterior to the eye.A. MouthB. CorneaC. EardrumD. None of these

    Explanation
    The eardrum, also known as the tympanic membrane, is a circular membrane located posterior to the eye. It is a thin, delicate structure that separates the outer ear from the middle ear. When sound waves enter the ear canal, they cause the eardrum to vibrate, which then transmits the vibrations to the middle ear bones, allowing for the process of hearing. Therefore, the correct answer is Eardrum.

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  • 10. 

    ____ pairs of openings postero-dorsal to the snoutA. IrisB. EardrumC. MouthD. Nostril

    Explanation
    The correct answer is Nostril. The question is asking about pairs of openings that are located postero-dorsal to the snout. The only option that fits this description is the nostril, as it is located on either side of the snout and is responsible for the sense of smell. The iris is the colored part of the eye and is not located near the snout. The eardrum is located in the middle ear, not near the snout. The mouth is not an opening, but rather a cavity.

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  • Current Version
  • Aug 26, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 18, 2013
    Quiz Created by
    Eunice_amanda
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