• 2022-05-27
    基底层细胞不断生长、增殖,形成所有其他表皮细胞。
    A: The cells of basal layer keepgrowing and multiplying and formall the other epidermis cells.
    B: The cells in the basal layer are constantly growing and multiplying and give rise to all the other cells in the epidermis.
  • B
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    • 0

      基底神经节( ). A: the basal microglia B: the basal ganglia C: the oligodendrocyte D: the glial cells

    • 1

      The main cells of the human epidermis are A: Melanocytes B: Keratinocytes C: Langerhans cells D: Merkel cell E: Fibroblasts

    • 2

      The basal layer also contains special cells called_______, which produce black pigment that gives color to the skin. A: adipocyte B: epithelium C: keratin D: melanocytes

    • 3

      Which of the following is true of the pulmonary alveoli() A: Present in all segments of the respiratory portion of the lung B: Site for gaseous exchange C: Lined by single layer of alveolar cells with type II cells being<br/>more numerous than type I cells D: Alveolar pores promote the collateral circulation of air when a<br/>bronchiole is obstructed E: Other choices are correct.

    • 4

      转基因小鼠技术采用的细胞是( )。 A: ES cells B: EG cells C: B cells D: T cells