Module 16 Definitions- Biology

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Questions: 12 | Attempts: 30

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Module 16 Definitions- Biology - Quiz


A timed quiz covering the definitions and bold print from Module 16. Be sure to not use any punctuation on the fill-in-the-blank questions, and do remember how to spell the word(s) correctly!


Questions and Answers
  • 1. 

    A poison that attacks the nervous system, causing blindness, paralysis, or suffocation is called...

    • A.

      ...a neurotoxin.

    • B.

      ...a hemotoxin.

    Correct Answer
    A. ...a neurotoxin.
    Explanation
    A poison that attacks the nervous system and causes blindness, paralysis, or suffocation is called a neurotoxin. Neurotoxins specifically target and damage the nerve cells, disrupting their normal functioning and leading to various severe symptoms such as loss of vision, loss of muscle control, and difficulty in breathing. Hemotoxins, on the other hand, affect the blood and its components, causing damage to blood vessels, clotting abnormalities, and other related issues. In this context, the correct answer is "a neurotoxin" as it accurately describes the type of poison causing the mentioned effects.

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  • 2. 

    A posion that attacks the red blood cells and blood vessels, destroying circulation is called...

    • A.

      ...a neurotoxin.

    • B.

      ...a hemotoxin.

    Correct Answer
    B. ...a hemotoxin.
    Explanation
    A poison that attacks the red blood cells and blood vessels, destroying circulation is called a hemotoxin. Hemotoxins are substances that cause damage to the blood and the circulatory system. They can lead to the destruction of red blood cells and damage to blood vessels, resulting in impaired circulation. This can have severe consequences for the affected individual, leading to organ damage or even death. Neurotoxins, on the other hand, target the nervous system and cause damage to nerve cells.

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  • 3. 

    A shelled, water-retaining egg that allows reptile, bird, and certain mammal embryos to develop on land is called an ____________ egg.

    Correct Answer
    amniotic
    Aminotic
    Explanation
    The correct answer is "amniotic." This term refers to a shelled, water-retaining egg that allows reptile, bird, and certain mammal embryos to develop on land. The incorrect answer "Aminotic" is a misspelling of the correct term.

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  • 4. 

    Feathers with hooked and smooth barbules, allowing the barbules to interlock are called...

    • A.

      ...down feathers.

    • B.

      ...contour feathers.

    Correct Answer
    B. ...contour feathers.
    Explanation
    Feathers with hooked and smooth barbules that interlock are called contour feathers. These feathers are found on the body, wings, and tail of birds, providing them with the ability to fly and maintain their streamlined shape. The interlocking barbules create a strong and flexible surface, allowing birds to control their flight and maintain stability in the air. Down feathers, on the other hand, are fluffy and lack the interlocking barbules, providing insulation and warmth to birds.

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  • 5. 

    Feathers with smooth barbules but no hooked barbules are called...

    • A.

      ...downfeathers.

    • B.

      ...contour feathers.

    Correct Answer
    A. ...downfeathers.
    Explanation
    Feathers with smooth barbules but no hooked barbules are called downfeathers. Downfeathers are soft and fluffy, providing excellent insulation and warmth to birds. They lack the interlocking structure of hooked barbules found in contour feathers, which are responsible for providing the bird with its streamlined shape and aiding in flight. Downfeathers are typically found beneath the outer layer of contour feathers and serve as an insulating layer, keeping the bird warm in cold weather.

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  • 6. 

    ___________ glands are specialized organs in mammals that produce milk to nourish the young.

    Correct Answer
    mammary
    Mammary
    Explanation
    Mammary glands are specialized organs in mammals that produce milk to nourish the young. These glands are unique to mammals and are responsible for the production, secretion, and delivery of milk to the offspring. The word "mammary" refers to these glands and their associated functions. Therefore, the correct answer is "mammary" or "Mammary."

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  • 7. 

    The period of time during which an embryo develops before being born is known as ________.

    Correct Answer
    gestation
    Gestation
    Explanation
    The correct answer is "gestation." Gestation refers to the period of time during which an embryo develops before being born. It is the process of pregnancy in mammals, where the fetus grows and develops inside the mother's womb until it is ready to be born.

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  • 8. 

    A _________ is a structure that allows an embryo to be nourished with the mother's blood supply.

    Correct Answer
    placenta
    Placenta
    Explanation
    A placenta is a structure that forms during pregnancy and connects the developing fetus to the mother's uterus. It allows for the exchange of nutrients, oxygen, and waste products between the mother and the fetus through the mother's blood supply. The placenta also produces hormones that are necessary for maintaining the pregnancy.

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  • 9. 

    Is the following characteristic one of the characteristics that separate mammals from the other vertebrates?Hair covering the skin

    • A.

      Yes!

    • B.

      No!

    Correct Answer
    A. Yes!
    Explanation
    Yes, hair covering the skin is one of the characteristics that separate mammals from other vertebrates. While some mammals may have hair that is reduced or absent, the presence of hair is a defining characteristic of mammals. Other vertebrates, such as reptiles and birds, have scales or feathers instead of hair.

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  • 10. 

    If an animal has a toothless bill, it probably belongs to Class ______.

    Correct Answer
    aves
    Aves
    Explanation
    The correct answer is "aves" or "Aves". This is because animals with a toothless bill are typically birds. Birds belong to the class Aves, which is a group of warm-blooded vertebrates characterized by feathers, beaks, and laying hard-shelled eggs.

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  • 11. 

    If an animal is ectothermic, it probably belongs to Class ___________.

    Correct Answer
    reptilia
    Reptilia
    Explanation
    If an animal is ectothermic, it probably belongs to Class Reptilia. Reptiles are ectothermic animals, meaning they rely on external sources of heat to regulate their body temperature. This is in contrast to endothermic animals, such as mammals and birds, which can generate their own body heat. Therefore, the correct answer is reptilia, referring to the class of reptiles.

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  • 12. 

    The world's largest lizard is the__________ ________.

    Correct Answer

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  • Apr 17, 2023
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