Examlex
In the 1930s, the Navajo Nation treated sheep and cattle for ticks and other parasites by using concrete "dip tanks," a common practice in the United States during that time period. Animals were herded into one end of the tank and out the other. Each day, the tanks were filled with 200,000 gallons of insecticide, and any remaining chemicals were emptied onto the ground. The pesticide solution seeped into the ground, ditches, and pits around the tanks.
In the 1990s, the EPA Emergency Response Team (ERT) was called to the Navajo Nation to investigate the problem. They concluded that bioremediation procedures were the best option for cleaning up the site. Certain types of bacteria are able to feed on and digest toxic organic substances, such as pesticides, and use them as fuel for cell respiration. The ERT distributed these pesticide-eating microorganisms throughout the contaminated soil to remove the chemical residues. Once the contaminants are degraded, these microorganism populations will die off because they will have used up all of their food supply.
-The bacteria used in this bioremediation procedure are
Food Preferences
The specific likes and dislikes an individual has towards certain types of food, often influenced by cultural, social, and personal factors.
Gender
The range of characteristics pertaining to, and differentiating between, masculinity and femininity, often based on social and cultural norms rather than biological differences.
Crisis Situation
An unpredictable and high-stress condition that requires immediate attention and action to prevent or mitigate damage.
Organizational Misdeeds
Actions or behaviors by an organization that are unethical, immoral, or illegal.
Q4: Which of the following lines of evidence
Q10: According to the accompanying figure, which amino
Q23: Which statement about genetics is true?<br>A) Genes
Q26: Based on Acanthostega fossils, scientists now believe
Q40: Compared to other primates, anthropoids have<br>A) a
Q43: Which of the following statements best describes
Q45: Multiple origins of replication on the DNA
Q56: The insect body plan includes many groups
Q60: Which clade is most directly related to
Q75: The plant genus Pinus reaches optimal growth