Nitrogen gas in the atmosphere is converted to forms of nitrogen usable by vegetation via:

A) assimilation.
B) fixation.
C) denitrification.
D) nitrification.
E) decomposition.


Answer: B

Biology & Microbiology

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True or False: Sickle-cell disease is a recessive disease. This means that two individuals without the disease cannot have a child with the disease. Only parents with the disease can pass it on.

Answer the following statement true (T) or false (F)

Biology & Microbiology

You have been maintaining a list of the bird species that frequent your property. At the end of the year you have tallied eight seed eaters, one nectar sipper, three woodpeckers, six insectivores, two frugivores, four predators, and one carrion feeder. Which term best describes each of the categories you have used in your tally?

A) community B) guild C) population D) habitat

Biology & Microbiology

Compare and contrast the ways in which animal, plant, and bacterial viruses gain entry into their host cells

What will be an ideal response?

Biology & Microbiology

Assuming that you are trying to determine the true effect of how years of education affect career earnings (Earningsi = ?0 + ?1Educationi + Ui), and that this effect is positive (i.e., all else equal more years of education lead to higher career earnings, ?1 > 0). What would be the likely induced correlation between Education and Ui of receiving a sample that only had individuals that made over $85,000?

A. Positive B. Negative C. There is not enough information. D. None of the answers is correct.

Biology & Microbiology