A molecule becomes more oxidized when it ______.
Fill in the blank(s) with the appropriate word(s).
Answer: loses an electron
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What process delivers organic nutrients to abyssal plains and trenches near continental shelves?
a. Decomposition b. Biological magnification c. Turbidity currents d. Marine snow
Stem cells (unspecialized cells) that develop into bone cells have undergone which type of process?
A. involution B. cellular differentiation C. cellular respiration D. embryonic development
A person who is heterozygous for the Huntington disease (HD) allele has offspring with someone who does not have HD. What proportion of their children will have HD?
A) 1/10 B) 1/4 C) 1/16 D) 1/8 E) 1/2
Which statement is not true about MHC II?
A) MHC II interacts with the CD4 receptor on T helper cells. B) MHC II primarily displays extracellular antigens which have been phagocytized. C) MHC II is present only on antigen-presenting cells. D) When bound to antigen, MHC II serves a key role in activation of the appropriate T cells. E) MHC II interacts with both the CD4 and CD8 receptors on T helper and T cytotoxic cells.