Module 13 - Phylum Chordata

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      Internal / External      fertilization is the process by which the male places sperm inside the         female's  body where the eggs are fertilized.

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Module 13 - Phylum Chordata - Quiz
About This Quiz

Phylum chordata are among the many in Kingdom animalia and they are categorized as those with a hollow dorsal nerve cord, an endostyle and a postanal tail. Did you know this? The quiz below tests on this and more.

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  • 2. 

    The region of the brain that controls involuntary actions and refines muscle movement is the   cerebrum / cerebellum   

    Explanation
    The cerebellum is the region of the brain that controls involuntary actions and refines muscle movement. It is responsible for coordinating and regulating motor movements, balance, and posture. While the cerebrum is involved in higher cognitive functions such as thinking, reasoning, and memory, the cerebellum focuses on the coordination and smooth execution of motor activities. It receives information from various sensory systems and integrates it to ensure precise and accurate movements. Therefore, the correct answer is the cerebellum.

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  • 3. 

    A circulatory system is said to be      open / closed    when the oxygen-       carrying blood cells never leave the blood vessels.

    Explanation
    In a closed circulatory system, the oxygen-carrying blood cells remain within the blood vessels and do not leave. This means that the blood flows through a network of vessels, such as arteries, veins, and capillaries, to transport oxygen, nutrients, and waste products throughout the body. The closed circulatory system provides a more efficient and controlled distribution of substances, allowing for a higher metabolic rate and more specialized functions in different parts of the body.

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  • 4. 

    The      cerebrum / cerebellum   is the region of the brain that contains the lobes which       integrate sensory information and coordinate the creature's response to that information.

    Explanation
    The cerebrum is the region of the brain that contains the lobes which integrate sensory information and coordinate the creature's response to that information. The cerebrum is responsible for higher cognitive functions such as thinking, memory, and voluntary movements. It is the largest part of the brain and is divided into two hemispheres. The lobes of the cerebrum, including the frontal, parietal, temporal, and occipital lobes, work together to process sensory information from the environment and generate appropriate responses.

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  • 5. 

    The   doral / caudal   fin is the main fin used for swimming by both shark and bony fish.

    Explanation
    The caudal fin is the main fin used for swimming by both sharks and bony fish. The caudal fin is located at the tail end of the fish and is responsible for generating propulsion and steering. It is usually large and powerful, allowing the fish to swim efficiently and maneuver through the water. This fin is crucial for the fish's ability to swim and survive in their aquatic environment.

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  • 6. 

    Which has the most flexible skeleton?

    • Shark

    • Frog

    • Lionfish

    Correct Answer
    A. Shark
    Explanation
    The shark has the most flexible skeleton compared to the frog and lionfish. Sharks have cartilaginous skeletons, which are made of flexible connective tissue rather than hard bone. This allows them to be more agile and maneuverable in the water. Frogs have a bony skeleton, while lionfish have a combination of bony and cartilaginous structures. Therefore, the shark's cartilaginous skeleton gives it the highest level of flexibility among the given options.

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  • 7. 

    What is the major respiratory organ for most amphibians?

    Correct Answer
    skin
    Explanation
    The skin is the major respiratory organ for most amphibians because it is highly permeable to gases, allowing for efficient gas exchange with the environment. Amphibians have thin, moist skin that is rich in blood vessels, which enables oxygen to diffuse into their bloodstream and carbon dioxide to diffuse out. This adaptation allows them to respire through their skin, in addition to their lungs, making the skin a crucial organ for their respiratory needs.

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  • 8. 

    Circulatory system:  Which vessel immediately delivers blood away from the heart? Check one

    • Capillary

    • Vein

    • Artery

    Correct Answer
    A. Artery
    Explanation
    The correct answer is artery. Arteries are blood vessels that carry oxygenated blood away from the heart to different parts of the body. They have thick and elastic walls to withstand the high pressure of blood being pumped by the heart. Veins, on the other hand, carry deoxygenated blood back to the heart, while capillaries are tiny blood vessels that connect arteries and veins, allowing for the exchange of nutrients, oxygen, and waste products between the blood and surrounding tissues.

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  • 9. 

    _____________ gives fish their "slimy" feel, waterproofs their scales, protects them from parasites and makes them more mobile in the water.

    • Fat

    • Collagen

    • Mucus

    • Protein

    Correct Answer
    A. Mucus
    Explanation
    Mucus is a slimy substance that is secreted by the skin or glands of fish. It serves multiple purposes such as providing a protective barrier against parasites, waterproofing their scales, and lubricating their movements in the water. This slimy feel is due to the presence of mucus, which helps fish to glide smoothly through the water and prevents friction.

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  • Mar 22, 2023
    Quiz Edited by
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  • Jul 06, 2014
    Quiz Created by
    Corrys

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