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In this phylogenetic tree, what trait is shared by Arthropoda and Nematoda? 

Which process helps move food through the digestive tract via muscle contractions?

In a closed circulatory system, blood:

Which of the following is not a characteristic of amphibians?

Spiders and scorpions belong to the phylum:

A court is evaluating the constitutionality of a law in a Substantive Due Process case. To determine the constitutionality of the law, the court is determining whether that law is necessary for the accomplishment of a compelling state interest. Based on how the court is evaluating the law, which of the following is most likely to be true?

Which of the following best describes the requirements for a warrant to be valid under the Fourth Amendment?

Which of the following best describes the relationship between the Fifth Amendment and Miranda v. Arizona?  

Which of the following statements about rights under the Constitution is TRUE

Congress passes a law designed to help eliminate pollution in waterways throughout the United States. Which of the following, if true, would make it most likely that the law would be found unconstitutional?