The major vector of Rocky Mountain spotted fever in the western United States is
A. Rickettsia rickettsi.
B. Rickettsia prowazeki.
C. Borrelia burgdorferi.
D. Dermacentor andersoni
D
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The ________ plasmid of Agrobacterium tumefaciens is often used as a vector for cloning and introducing foreign genes into plants.
Fill in the blank(s) with the appropriate word(s).
All cells contain
A. cell walls made of cellulose. B. organelles for compartmentalization. C. ribosomes for protein synthesis. D. mitochondria to generate ATP. E. uracil in their DNA.
Cancer can originate in any area of the body. However, death rates are often highest for those cancers involving organs within the digestive, cardiovascular, and respiratory systems. This is most likely because
A. these organs play vital roles in maintaining homeostasis. B. there are no treatment options for these types of cancer. C. these organs are larger and therefore harder to treat. D. these organs are all involved in processing food, which is vital to our survival.
Which of the following glands is located nearest the kidneys?
What will be an ideal response?