The main reservoir of plant-available phosphorus is organic matter in the soil
Indicate whether the statement is true or false
FALSE
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Activated sludge is used in which sewage treatment step?
A. Secondary B. Tertiary C. Primary D. All of these choices are correct.
Which of the following gives the correct rank order for relative toxicity (most to least) of the primary nitrogenous wastes used by different animals?
A. ammonia ? urea ? uric acid B. uric acid ? ammonia ? urea C. urea ? uric acid ? ammonia D. ammonia ? uric acid ? urea E. urea ? ammonia ? uric acid
Sexually dimorphic features do not include
A. antlers. B. colored plumage. C. additional tail feathers. D. intelligence. E. body size.
One way in which small viruses package more information into a very small genome is to use overlapping genes so that the same base sequence is read in more than one reading frame.
Answer the following statement true (T) or false (F)