Some drugs, such as taxol and Tamiflu that are currently used with great success to treat cancer and viral infections,
A) are derived from wild plants.
B) represent the intrinsic value of wild species.
C) are derived from genetically modified cultivars that combine together traits of several plants.
D) were discovered as mutations in the development of new cultivars of wheat.
A
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The explosions at the Fukushima Nuclear Power Plant in northeast Japan following damage by an offshore earthquake blew the roofs off of three of the reactor buildings. The explosions were caused
a. presumably by a meltdown of the reactor cores. b. presumably by steam from the heat exchangers inside the reactor cores c. presumably by a buildup of hydrogen gas when the backup generators were disabled d. terrorists taking advantage of the chaos of the situation e. spent fuel rods that were exposed when the storage water tanks cracked and stopped cooling the rods
What is the colligative property that deals with the freezing point of water?
a. Sea ice forms at a higher temperature than freshwater ice. b. Salinity disrupts the hydrogen bonding in water and increases the freezing point. c. Salt crystals become incorporated into ice as it forms causing the temperature to increase. d. Salinity disrupts the hydrogen bonding in water and acts as a type of antifreeze. e. Lake ice forms at a lower temperature than sea ice.
Orbitals of wind waves close to shore have elliptical orbits due to the proximity of the bottom. Indicate whether the statement is true or false
The key to successful and sustainable waste management involves many stakeholders, community support, and excellent management. What is important for all these things to work together?
A. landfill B. recycling C. composting D. education