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.


C

Biology & Microbiology

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The Nod factor is an important component of  

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_____ can be used to correct a genetic defect

a. Cloning vectors b. Gene therapy c. Cloning d. Xenotransplantation e. Cloning vectors and gene therapy f. all of these

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Where are the light-independent reactions

occurring?

a. in the cytoplasm b. in the chloroplastic outer membrane c. in the thylakoid membrane d. in the stroma e. in the matrix

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Chloride ions move by ________, following the transport of sodium out of the proximal tubule

Fill in the blank(s) with correct word

Biology & Microbiology