Which elements have an inorganic reservoir that exists primarily in sedimentary deposits?
a) Nitrogen
b) Phosphorus
c) Sulfur
d) B and C
Ans: d) B and C
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Some viruses have an additional coating on the outside of the capsid, acquired from the host cell. What is this additional coating called?
a. plasma membrane b. nucleic coat c. envelope d. proteoglycan
The first tetrapods evolved ____
a. on land b. after the amphibians c. in water d. after the first amniotes e. from the ray-finned fishes
A(n) _____vehicle is a single material that serves as the course of infection for many individuals, such as a contaminated water source
Fill in the blank(s) with the appropriate word(s).
What is the goal of angiogenesis inhibitors?
A. They inhibit the synthesis of HER1 proteins on cancerous cells. B. They inhibit the formation of small blood vessels that feed a tumor. C. They prevent the activation of protein kinases in the cell. D. They target the Ras protein, causing it to stop promoting cell division. E. All of the choices are correct.