It is called a ________ vector when the vector organism has a role in the pathogen's life cycle
A) biological B) zoonotic C) fomite D) mechanical E) vehicle
Answer: A
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Pair the ribosomal structure with the correct organism.
A. Archaea B. Bacteria C. Eukaryote
APCs interact with ____during an antibody-mediated immune response, and with ____ during a cell-mediated
immune response.____
a. CD8+ T cells; CD4+ T cells b. CD4+ T cells; CD8+ T cells c. CD8+ T cells; CD8+ T cells d. CD4+ T cells; CD4+ T cells e. macrophages; CD4+ T cells
In its active form, the Ras protein is associated with
A) DNA. B) ATP. C) GTP. D) RNA. E) GDP.
Which of the following statements is false?
a. Xylem vessels are similar to drinking straws. b. The transport of water in xylem is due to positive pressure generated by the root. c. The stomata of most plants close at night. d. Water is drawn up to the top of a tree by the pull of transpiration. e. Plants absorb the majority of needed elements from water and soil.