The concept of "immunologically privileged" explains why the CNS

A. has a greater immune response that the rest of the body
B. has a reduced immune response compared to the est of the body
C. has a completely different set of immune responses
D. has more MHC markers that other tissues
E. All of the choices are correct


Answer: B. has a reduced immune response compared to the est of the body

Biology & Microbiology

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The growth rate of a population per unit of time is calculated by using this formula: G = r x N. What is the quantity r and how is it calculated?

a. The quantity r is the exponential growth rate and is calculated by subtracting the number of deaths from the number of births. b. The quantity r is the per capita growth rate and is calculated by multiplying the number of births and the number of deaths. c. The quantity r is the per capita growth rate and is calculated by subtracting the number of deaths from the number of births. d. The quantity r is the biotic potential of a population and is calculated by adding the birth rate and the death rate. e. The quantity r is the monthly net increase of a population and is calculated by subtracting the number of births from the starting population size.

Biology & Microbiology

DNA replication is described as being conservative

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

A plant's lateral roots arise from the

a. endodermis b. epidermis c. phloem d. xylem e. pericycle

Biology & Microbiology

The highest percentage of non-coding DNA is found in:

a. genes. b. bacteria. c. eukaryotes, with the exception of yeasts. d. viruses. e. yeasts

Biology & Microbiology