MCAT Question of the Day
    •

    Q:

    		 A cluster of cancerous tumor cells is found to produce and secrete growth factors. These growth factors then cause the surrounding somatic cells to grow and divide. Which of the following best describes this type of chemical signaling?

    		 

    A

    		 Paracrine

    B

    		 Autocrine

    C

    		 Endocrine

    D

    		 Intracrine



    Endocrine System |
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