An ion that is a necessary component of high-energy compounds and nucleic acids and a structural component of bone is the ________ ion
A) chloride
B) sulfate
C) phosphate
D) bicarbonate
E) iodide
C
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The structure in the cell that controls most of the activities of the cell is the:
a. cilia b. nucleus c. nucleolus d. ribosomes
Select the correct statement about lymphocytes
A) The two main types are T cells and macrophages. B) T cells are the precursors of B cells. C) T cells are the only form of lymphocyte found in lymphoid tissue. D) B cells produce plasma cells, which secrete antibodies into the blood.
A/an ____________ is an instrument used to measure the air taken in and out of the lungs
Fill in the blank(s) with correct word
In a chemical reaction where an electron is exchanged from one reactant to another, the structure that loses an electron is
A. reduced. B. analyzed. C. catalyzed. D. oxidized.