Study the 1921 political cartoon about the Emergency Quota Act How does the cartoon reflect bias?

The cartoon’s bias-con portrays the US as a bad country.
The cartoon’s bias-con portrays immigrants as lesser people.
The cartoon’s bias-pro portrays the US as limiting immigration.
The cartoon’s bias-pro portrays immigrants desiring to come to the US. First person to answer gets bainliest

Doctors recommend that both men and women take an aspirin every day to prevent heart attacks. however, the sample in the research study only contained men. the problem with doctors making this aspirin recommendation reflects a bias.

Aresearcher conducts a focus group to learn about attitudes towards hygiene and disease prevention. two weeks after the focus group, the researcher learns one of the subjects had a heart attack at home and was hospitalized, but made a full recovery. based on dhs regulations, the researcher report this event to the irb? no, this does not need to be reported since the subject had the heart attack when they were home, not at the focus group. no, this does not need to be reported since it is unrelated to participation in the study. no, this does not need to be reported because two weeks have passed. no, this does not need to be reported since the subject recovered.

How would having more railroad tracks be advantageous during a war