. The main forms of nitrogen taken up by plant roots and useful to plants is:
A. N-N
B. nitrite
C. nitrite and nitrate
D. ammonia and N-N
E. nitrate and ammonia
E. nitrate and ammonia
Biology & Microbiology
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A. Staphylococcus aureus B. Staphylococcus aureus C. staphylococcus aureus D. S. aureus E. Staphylococcus aureus AND S. aureus
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A) skull B) pelvic girdle C) pectoral girdle D) radius
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Which of the following vaccines can cause the disease it is designed to prevent?
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