Acommercial advertising a diet pill says it is scientifically proven to you lose weight. it is recommended by a doctor who observed that some of his patients lost weight after taking the pill for a week.

why is this claim considered pseudoscience?

it was doctor recommended.
the information was delivered in a commercial.
the pill was not tested with a controlled experiment.
the pill contents are not included in the commercial.

Apopulation of bears has genetic diversity. some of the bears have an allele that gives them thicker fur. due to climate change, the winters have gotten colder in their habitat. now the bears with thicker fur are becoming more common in the population. a.) which type of bear is selected for in the coldest ecosystem? b.) what must be the other allele for the type of fur, and what term would you use to describe the fact that the allele is becoming less common in the colder climate? c.) describe the change in the bear population in terms of changing allele frequencies and phenotypes d.) is this an example of natural selection