PCBs, or polychlorinated biphenyls,
A) are used today extensively for various purposes in industry
B) are safe for aquatic organisms
C) can cause chloracne in humans and their manufacture in the US has been discontinued
D) none of these
Correct Answer:
Verified
Q15: Medications and toxins alike can enter the
Q16: Mutagens such as benzo[ᶏ]pyrene can cause changes
Q17: Nerve cells (neurons) are connected by
A)cilia
B)ligaments
C)gaps or
Q18: Neurotoxins interfere with the
A)Citric Acid cycle
B)Krebs cycle
C)Acetylcholine
Q19: Nitrogen dioxide (NO2) is
A)very dangerous to humans,
Q21: Poisons that show up in the environment
Q22: Select the accurate statement.
A)Exposure to lead and
Q23: Substances which in low concentrations can cause
Q24: Sulfur dioxide (SO2) is an environmental toxin
Q25: Teratogens such as thalidomide can cause
A)birth defects
B)anemia
C)hepatitis
D)none
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