Pathogens or disease-causing agents are typically found in which two domains?

a. Archaea and Bacteria
b. Bacteria and Eukarya
c. Archaea and Eukarya
d. Prokarya and Eukarya


B

Biology & Microbiology

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The theory of chromosomal inheritance was first proposed by  

A.  Mendel. B.  Morgan. C.  Knight. D.  Sutton. E.  Stern.

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The positively charged component of the atom is the

A. electron. B. neutron. C. proton. D. quark.

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The most significant cells in graft rejection are

A. helper T cells. B. suppressor T cells. C. cytotoxic T cells. D. natural killer (NK) cells. E. delayed hypersensitivity T cells.

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Kinetochores attach

A) sister chromatids to each other. B) chromatids to spindle microtubules. C) chromosomes to each other. D) chromosomes to ribosomes.

Biology & Microbiology