In an atom, the number of neutrons determines most specifically the ________.
A. chemical properties
B. chemical element
C. ion state
D. isotope
Answer: D
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Which of the following is TRUE of a morphogen? It is a signaling molecule that
A. is required for cell-to-cell contact within the embryo. B. induces the differentiation of cells within the embryo. C. induces blastulation of the developing embryo. D. induces implantation of the embryo into the uterus of mammals. E. that separates out cytoplasmic factors to their respective cells within the developing embryo.
CO2 is transported in the blood ____
a. dissolved in the plasma exclusively b. as bicarbonate ions exclusively c. bound to hemoglobin exclusively d. dissolved in the red blood cells exclusively e. dissolved in the plasma, as bicarbonate ions, and bound to hemoglobin
The techniques associated with biotechnology have allowed for fairly widespread manipulation of food available for consumption. The idea of genetically modified foods has many Americans concerned about the safety of these foods
In your opinion, are the concerns well-founded?
The breakdown of ____ into cellular energy can involve glycolysis.
A. carbohydrates B. fats C. proteins D. carbohydrates and fats E. fats and proteins