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why were republicans in the senate opposed to the treaty of versailles?

a. they believed that the treaty of versailles punished germany to harshly.

b. they believed that the treaty of versailles did not punish germany enough.

c, they did not want president wilson, a democrat, to be seen as a successful world leader.

d, they believed that the membership in the league of nations would limit the ability of the united states to act independently in international affairs.

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.

Can someone me with these 2 questions? and tell me why it is the correct answer?

For 50 points a crustacean is a. both a consumer and a predator b. both a predator and a prey animal c. both a producer and a predator d. prey only