Careful observations of the similarities and differences between living organisms allow us to for study

Classify

Explanation:

According to my research on observational studies, I can say that based on the information provided within the question this allows scientists to classify them for study. Classify species allows all scientists to group together organisms and better understand how everything works. It also helps with evolutionary theories.

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do your own work

you really need to do your own work and stop cheating

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.