Module 16 - Reptile, Birds, Mammals

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Module 16 - Reptile, Birds, Mammals - Quiz

As we study Biology, we come across reptiles, birds and mammals. Module 16 is a quiz to test and advance your knowledge on these three animal classes. How well do you know them? Find out below and all the best.


Questions and Answers
  • 1. 

    Reptiles have a slimy skin due to mucus production.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Reptiles do not have slimy skin due to mucus production. In fact, reptiles have dry and scaly skin, which helps prevent water loss. Unlike amphibians, reptiles do not have glands that secrete mucus to keep their skin moist. Instead, their skin is covered in scales or scutes, which provide a protective barrier and help retain moisture. Therefore, the statement that reptiles have slimy skin due to mucus production is false.

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  • 2. 

    Reptiles are ectothermic.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Reptiles are ectothermic because they rely on external sources of heat to regulate their body temperature. Unlike endothermic animals, such as mammals and birds, which generate heat internally, reptiles depend on their environment to warm up or cool down. This characteristic allows reptiles to conserve energy, as they do not need to constantly produce metabolic heat. Instead, they bask in the sun or seek shade to maintain their preferred body temperature.

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  • 3. 

    The ostrich is the only bird that cannot fly.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The statement is false because the ostrich is not the only bird that cannot fly. There are several other flightless bird species, such as penguins, kiwis, and emus, among others. Therefore, the correct answer is false.

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  • 4. 

    Down feathers have hooked and smooth barbules which allow them to interlock.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Down feathers have hooked and smooth barbules which allow them to interlock. This statement is false. Down feathers are actually characterized by having smooth barbules without hooks. This lack of hooks prevents the barbules from interlocking, which allows down feathers to trap air and provide insulation.

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  • 5. 

    The special feather on the leading edge of a bird's wing helps it fly faster.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The special feather on the leading edge of a bird's wing does not help it fly faster. Birds use their wings and feathers in a complex way to generate lift and propel themselves through the air, but the specific feather on the leading edge does not have a direct impact on speed. The shape and structure of the entire wing, along with the bird's flight technique, are the main factors that determine its speed.

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  • 6. 

    Mammary glands are specialized organs which secret milk to nourish young reptiles.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Mammary glands are actually specialized organs that secrete milk to nourish young mammals, not reptiles. Reptiles do not possess mammary glands and instead have different methods of nourishing their young. Therefore, the given statement is false.

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  • 7. 

    The duck-billed platypus lays eggs.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The duck-billed platypus is a unique mammal that lays eggs, making it one of the few mammals known to do so. This characteristic sets it apart from most other mammals, as they typically give birth to live young. The platypus belongs to a group of mammals called monotremes, which also includes the echidna. These animals have a combination of reptilian and mammalian traits, and the ability to lay eggs is one of their defining features. Therefore, the statement that the duck-billed platypus lays eggs is true.

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  • 8. 

    Reptiles lay an amniotic egg which is covered in a lime-containing shell.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Reptiles do lay amniotic eggs, but these eggs are not covered in a lime-containing shell. Instead, reptile eggs have a leathery or hard shell that is not composed of lime. Therefore, the statement is false.

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  • 9. 

    Neurotoxins attack the nervous system, causing blindness, paralysis, and suffocation.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Neurotoxins are substances that specifically target and damage the nervous system. They interfere with the normal functioning of nerve cells, leading to various harmful effects such as blindness, paralysis, and suffocation. These toxins can disrupt the transmission of signals between nerve cells, impairing sensory and motor functions. Therefore, the statement that neurotoxins attack the nervous system and cause blindness, paralysis, and suffocation is true.

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  • 10. 

    The purpose of underhair on class Mammalia is to provide insulation.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Underhair, also known as the undercoat, serves as insulation for mammals. It is a layer of fine, dense hair that grows beneath the outer layer of fur. This underhair helps to trap air close to the body, creating a layer of insulation that helps to regulate body temperature. This adaptation is particularly important in colder environments, as it helps to keep the animal warm by preventing heat loss. Therefore, the statement that the purpose of underhair on class Mammalia is to provide insulation is true.

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  • 11. 

    Type the letter of the class for the following descriptions for questions 11-25R=ReptiliaA=AvesM=MammaliaHave hair covering the skin. (M, A, R)

    Correct Answer
    M
    Explanation
    The correct answer is M because mammals are the only class among the options that have hair covering their skin. Reptiles (R) have scales or scutes, while birds (A) have feathers. Only mammals have hair, which serves various functions such as insulation, protection, and sensory perception.

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  • 12. 

    Reproduce with internal fertilization and are usually viviparous. (M, A, R)

    Correct Answer
    M
    Explanation
    The letter "M" in this context likely stands for "Mammals". Mammals are known to reproduce through internal fertilization, meaning that the sperm fertilizes the egg inside the female's body. They are also usually viviparous, which means that they give birth to live young instead of laying eggs. Therefore, the correct answer is "M".

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  • 13. 

    Skeleton must be composed of porous, lightweight bones. (M, A, R)

    Correct Answer
    A
    Explanation
    The given statement states that the skeleton must be composed of porous, lightweight bones. The letter "A" is the correct answer.

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  • 14. 

    The sea snake, coral snake, and cobra are members of this class. (M, A, R)

    Correct Answer
    R
    Explanation
    The answer "R" refers to the class of reptiles. The sea snake, coral snake, and cobra are all reptiles. Reptiles are cold-blooded vertebrates that have scales or scutes and lay eggs on land. They are characterized by their ability to regulate their body temperature through external means, such as basking in the sun or seeking shade. The sea snake, coral snake, and cobra all possess these reptilian characteristics, placing them in the same class.

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  • 15. 

    Have a three-chambered heart with a ventricle which is partially divided. (M, A, R)

    Correct Answer
    R
    Explanation
    The given answer "R" refers to reptiles. Reptiles have a three-chambered heart with a ventricle that is partially divided. This means that their heart has two atria and one partially divided ventricle, which allows for some separation of oxygenated and deoxygenated blood. This adaptation helps reptiles maintain a higher metabolic rate compared to amphibians, which have a three-chambered heart without any division in the ventricle.

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  • 16. 

    Contains members which have Jacobson's organs and scutes. (M, A, R)

    Correct Answer
    R
    Explanation
    The given correct answer is "R". This is because the statement mentions that the organism contains members which have Jacobson's organs and scutes. Since "R" is the only option provided in the answer choices, it can be inferred that "R" is the correct answer. However, without any additional information or context, it is difficult to determine what "R" specifically refers to.

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  • 17. 

    Are endothermic, have a four-chambered heart, and possess a toothless bill. (M, A, R)

    Correct Answer
    A
    Explanation
    The given answer "A" is correct because animals that are endothermic (able to regulate their own body temperature), have a four-chambered heart (which allows for efficient oxygenation of the blood), and possess a toothless bill (indicating a specific type of beak structure) are characteristics of birds. Birds are the only group of animals that possess all these traits, making option A the correct choice.

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  • 18. 

    Often can be seen preening. (M, A, R)

    Correct Answer
    A
    Explanation
    The given statement suggests that the subject mentioned in the question is frequently observed engaging in preening behavior. Since the options provided are M, A, and R, we can infer that the correct answer must be A, as it is the only option that matches the given statement.

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  • 19. 

    Produce a placenta and have mammary glands. (M, A, R)

    Correct Answer
    M
    Explanation
    The correct answer is "M" because the statement "Produce a placenta and have mammary glands" is true for mammals. Mammals are the only group of animals that produce a placenta, which is an organ that connects the developing fetus to the mother's uterus and provides nutrients and oxygen to the fetus. Mammals also have mammary glands, which are specialized glands that produce milk to nourish their young. Therefore, the presence of both a placenta and mammary glands is a defining characteristic of mammals.

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  • 20. 

    Produce an amniotic egg, which is covered in a lime-containing shell. (M, A, R)

    Correct Answer
    A
    Explanation
    This statement is correct because producing an amniotic egg, which is covered in a lime-containing shell, is a characteristic of reptiles. Reptiles, such as turtles and snakes, lay eggs that have a protective shell made of calcium carbonate, which gives them a hard and leathery texture. This shell helps to protect the developing embryo and provides a suitable environment for its growth. Therefore, option A is the correct answer.

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  • 21. 

    Members include kangaroos, whales, and mankind. (M, A, R)

    Correct Answer
    M
    Explanation
    The letter "M" is the correct answer because it represents the common characteristic of all the mentioned members, which is the first letter of their names. Kangaroos, whales, and mankind all start with the letter "M".

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  • 22. 

    Produce an amniotic egg with a leathery shell. (M, A, R)

    Correct Answer
    R
    Explanation
    The letter "R" represents reptiles. Reptiles are known for producing amniotic eggs with leathery shells. This type of egg allows reptiles to reproduce on land, as the leathery shell is more flexible and can withstand drying out. This adaptation is crucial for reptiles, as it allows them to lay their eggs in terrestrial environments without the need for water.

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  • 23. 

    Members include the tuatara, gecko, and iguana. (M, A, R)

    Correct Answer
    R
    Explanation
    The given answer "R" is correct because "R" represents reptiles, and the members mentioned in the question (tuatara, gecko, and iguana) are all reptiles.

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  • 24. 

    Have thin strands of bone which serve as struts within their wings.

    Correct Answer
    A
    Explanation
    Birds have thin strands of bone called struts within their wings. These struts provide structural support and help to strengthen the wings, allowing birds to fly efficiently. The presence of these bone struts in bird wings is a unique adaptation that allows them to have lightweight yet strong wings, enabling them to soar through the air with ease. This adaptation is crucial for birds' survival as it allows them to hunt for food, escape predators, and migrate long distances.

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  • 25. 

    Offspring go through a gestational period. (M, A, R)

    Correct Answer
    M
    Explanation
    Offspring going through a gestational period is a characteristic commonly observed in mammals. This period refers to the time during which the offspring develops inside the mother's body before being born. Mammals, including humans, undergo this process to ensure the proper growth and development of their offspring before they are ready to survive independently. This process involves various stages of embryonic development and is essential for the survival and well-being of the offspring.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 06, 2014
    Quiz Created by
    Corrys

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