The surfaces of clay particles in soil ____
a. often bear positively charged ions
b. release water to plants easily
c. often bear negatively charged ions
d. are generally hydrophobic
e. acidify the soil
ANSWER: c
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What will be an ideal response?
The neuronal pathways behind gustatory reception most closely parallel those of
A. olfaction. B. vision. C. limb position. D. light touch. E. pain.
The ampullae of Lorenzini are specialized organs for detecting ____ that are found in sharks
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A plasma cell is a cell that has differentiated from a:
A) mast cell. B) T cell. C) B cell. D) dendritic cell.