Describe two ways that stream water quality that is healthy for trout differs from that in which trout would be unlikely to survive.
What will be an ideal response?
“Trout usually thrive in water temperatures between 50 and 75 degrees and generally die at temperatures above 75 degrees. Within this range, however, the temperature which individual species prefer varies considerably. For example, the brown trout prefers 65 to 75 degrees for most of its activities, while the brook and rainbow trout become stressed above 70 degrees. These two species flourish when water remains between 55 and 68 degrees. Needless to say, temperature is critical to the success of trout. Another equally important factor, and one directly related to temperature, is the amount of available dissolved oxygen”
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If one strand of DNA has the sequence 5'-CCGTAGCA-3', the complementary strand would be written as ____________________
Fill in the blank(s) with correct word
Which immune system cells primarily function as antibody producers and originate from stem cells?
a. B lymphocytes b. T lymphocytes c. Natural killer cells d. Neutrophils
Which is/are true of viruses?
A. They may suppress the production of MHC Class I protein. B. They may produce an MHC Class I mimic protein. C. They may prevent cell suicide. D. They may bind to MHC class II antigens. E. They may suppress the production of MHC Class I protein, they may produce an MHC Class I mimic protein, AND they may prevent cell suicide.
The spontaneous mutation rate for autosomal genes can be estimated using the formula: number of de novo cases/________X.
A) 1 B) 2 C) 3 D) 4