Which of the following best described the surfaces of clay particles in soil?
a. They often bear positively charged ions.
b. They release water to plants easily.
c. They often bear negatively charged ions.
d. They are generally hydrophobic.
Ans: c. They often bear negatively charged ions.
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Which layer of the extracellular matrix of a plant provides the greatest strength?
A. the middle lamella B. the primary cell wall C. the secondary cell wall D. the plasma membrane
If a human body has an insufficient supply of oxygen, the skeletal muscle cells may switch from cellular respiration to which of the following?
a. alcoholic fermentation b. photosynthesis c. lactic acid fermentation d. metabolism
Total potential and kinetic energy of an object
What will be an ideal response?
If two parents who are unaffected have a child that is affected, then the parents are both considered bearers.
Answer the following statement true (T) or false (F)