Which of the following is NOT a predisposing factor affecting the occurrence of disease?
A) climate
B) nationality
C) nutrition
D) preexisting illness
Ans: B) nationality
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When two or more genes from the same genome have nucleotide sequences so alike that they most probably arose from gene duplication those genes are called ________.
A. homologs B. duologs C. orthologs D. paralogs
Viruses and bacteria were first cultured in the laboratory at about the same time.
Answer the following statement true (T) or false (F)
The term biome refers to
a. the animals present in a given area. b. the interaction of living organisms and the physical environment in a region. c. large regions with distinctive plant communities. d. all the living organisms in an area. e. only the bacteria in a region.
__________ fills spaces between cells. Fill in the blank(s) with the appropriate word(s)