PCBs were frequently used in electrical transformers. A young man digs in an abandoned industrial site, finding old transformers, and sells the copper wire from them to a scrap yard. What health problems might the young man have in the future?
What will be an ideal response?
PCBs may have a feminizing effect on him and reduce his sperm count or even cause prostate or testicular cancer.
Biology & Microbiology
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Pseudomonads are aerobic, gram-positive, polar flagellated, bacillus-shaped cells
Indicate whether the statement is true or false.
Biology & Microbiology
Genetic maps are constructed by estimating the distances between linked genes based on the calculation of ____________________
Fill in the blank(s) with correct word
Biology & Microbiology
Active transport ________.
utilizes energy cannot transport molecules against a concentration gradient cannot be saturated requires cofactors
Biology & Microbiology
What is the correct unit of measurement for the size of most viruses?
a. picometers b. nanometers c. micrometers d. centimeters e. decimeters
Biology & Microbiology