Multiple Choice
Biologists believe that whooping cranes suffer from a high rate of developmental deformities of the spine and trachea because of ____.
A) biological magnification of DDT
B) exposure to hormone-mimicking pollutants from plastics
C) a population bottleneck and loss of genetic variability
D) conservation biologists saving chicks that would have died at hatching
E) exposure to PCBs used as insulators in electronics
Correct Answer:

Verified
Correct Answer:
Verified
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