By making two covalent bonds, an O atom (with 8 protons) fills its valence shell. Why does the atom's charge stay close to zero?
What will be an ideal response?
Shared electrons aren't always near oxygen.
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The liquid portion of the blood is called ________________________________________
Fill in the blank(s) with correct word
Activation of the sympathoadrenal system would cause ________.
A. hyperglycemia B. diabetes insipidus C. hypoglycemia D. excessive weight gain
DiGeorge syndrome is a chromosomal disorder in which the thymus never develops/barely develops due to a deletion in a chromosome. Which of the following complications would you expect a child with DiGeorge syndrome to encounter?
A. The child will possess very few T lymphocytes and will be immunocompromised. B. The child will lose flow of lymph through the body, so recurrent edema will result. C. The child will not possess any B lymphocytes and will be immunocompromised. D. The space in which body fluid is filtered and pathogens are destroyed will be missing, so the child will be prone to life-threatening infections.
Interferons are one of the classes of
A. colony-stimulating factors. B. cytokines. C. tumor necrosis factors. D. interleukins.