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1. Characterize the differences among untreated, primary-treated, and secondary-treated sewage and compare and explain the effects of dumping each type on the eutrophication of a pond and a fast-moving river.
2. Flooding after two weeks of heavy rainfall in Tooele, Utah preceded a high rate of diarrheal illness. Giardia lamblia was isolated from 25% of the patients. A comparison study of a town 65 miles away revealed diarrheal illness in 2.9% of the people interviewed. Tooele has a municipal water system and a municipal sewage treatment plant.
The bioremediation process shown in the photograph below is used to remove benzene and other hydrocarbons from soil contaminated by petroleum. The pipes are used to add nitrates, phosphates, oxygen, or water.
How does cancer spread through the body? and what is the difference between benign and metasis ?
Almost all viruses have to produce viral proteins that aid evasion of the host immune response. For each of the viral proteins listed below, explain why the activity described would enable the virus to avoid immune response.
Which of these situations would be most positive to the re-establishment of resident zoochlorellae, assume compatible Chlorella are present in P. bursaria's habitat.
What effect would the following mutations have on the expression of the enzyme coding sequences of the tryptophan operon. Select the letter on the right that describes the effect.
Describe the mechanics of inspiration and expiration.
For which molecules and ions does your experiment give evidence for passage through the semipermeable dialysos membrane? in which direction(into or out of the bag) are the molecules moving?
how many gonads does the starfish have in total? what structure in the earthworm is similar?
Recently, some researchers have discovered that having an extra copy of a certain very small region on the 16th chromosome leads to individuals with extremely low BMI (body mass index). Describe two different structural mutations that could lead t..
The Obama administration plans to unveil a new AIDS strategy Tuesday, aimed at reducing new infections and increasing the number of HIV-positive people getting care.
how to use an autoclave machine? During the formation of gametes in humans how many chromosoes are there in each cell at the end of telophase 1?
what is the meaning of the proportionality between reaction rate and enzyme concentration, in terms of how the enzyme acts?
According to the textbook, gender is the social construct that is assigned and learned based on cultural concepts about the nature of sex differences and their place in social life. In your forum response, pick one of the alternative genders disc..
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