At the same latitude, a person with dark skin would have which levels of folic acid and vitamin D as compared to a person with light skin?
A. no difference in vitamin D or folic acid
B. an increase in both folic acid and vitamin D levels
C. a decreased level of folic acid and an increased level of vitamin D
D. a decrease in both folic acid and vitamin D levels
E. an increased level of folic acid and a decreased level of vitamin D
E. an increased level of folic acid and a decreased level of vitamin D
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Mode of inheritance reflects
A) whether a gene is on an autosome or sex chromosome and whether the allele is recessive or dominant. B) whether the allele is transmitted from the male or the female. C) the number of genes that determine a trait. D) the size of the chromosome that includes the gene in question and the sex of the parent transmitting it.
____________________ junctions are channels that connect the cytoplasm of neighboring cells. Fill in the blank(s) with the appropriate word(s)
Signals from the _____excite motor neurons, resulting in action potentials in muscle fibers.
Fill in the blank(s) with the appropriate word(s).
The impact of public health measures in the United States has resulted in a/an ________ in infectious disease-related deaths over the past 100 years.
A. no change B. increase C. decrease