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  • Question
  • The basic unit of the nervous system is the


  • Options
  • A. Lymphs
  • B. Nephrons
  • C. Nerves
  • D. Neurons

  • Correct Answer
  • Neurons 

    Explanation

    The basic unit of the nervous system is the Neurons.

     

    The neuron is a single nerve cell, and you have billions of them.

    There are three basic types of neurons::

    1. Association,

    2. Afferent  and

    3. Efferent.

    The association neurons comprise the central nervous system (CNS) that is the brain and spinal cord.

    The afferent neurons are also known as the sensory neurons, they bring the stimuli from the sensors (e.g., skin, eyes, ears) to the CNS.

    The efferent neurons are also known as motor neurons, they bring the responses from the brain to the muscles and the glands.

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    Biology problems


    Search Results


    • 1. Bacteria divide by

    • Options
    • A. Binary Fission
    • B. Spirilla
    • C. RNA
    • D. Fusion
    • Discuss
    • 2. Function of Bile juice?
    • Discuss
    • 3. When during the Cell Cycle are Chromosomes visible?

    • Options
    • A. only during interphase
    • B. only during cell division
    • C. only during G1 phase
    • D. only during they are replicated
    • Discuss
    • 4. Compared to land, the open oceans

    • Options
    • A. are rich in silica and iron
    • B. are nutrient-poor environments
    • C. contain unlimited nitrogen
    • D. are nutrient-rich environments
    • Discuss
    • 5. Which structure is not part of the Endomembrane System?

    • Options
    • A. Chloroplast
    • B. Plasma membrane
    • C. Nuclear envelope
    • D. Golgi apparatus
    • Discuss
    • 6. Which type of simple sugar is found primarily in fruit?

    • Options
    • A. Sucrose
    • B. Fructose
    • C. Maltose
    • D. Lactose
    • Discuss
    • 7. Each hemoglobin molecule can transport two molecules of oxygen.

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 8. Plant development is influenced by

    • Options
    • A. quality, quantity and duration of light
    • B. quality and duration of light
    • C. quality and quantity of light
    • D. quality of light only
    • Discuss
    • 9. Where does glycolysis take place?

    • Options
    • A. Mitichondria
    • B. Cytoplasm
    • C. Mitochondrial outer membrane
    • D. None of above
    • Discuss
    • 10. A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc x AaBbCc, the phenotypic ratio of the offsprings was observed as 1 : 6 : m : 20 : m : 6 : 1. What is the value of m?

    • Options
    • A. 10
    • B. 15
    • C. 18
    • D. 24
    • Discuss


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