Lyndon, a citizen of Maryland, obtains a federal license to operate a commercial fishing boat in a certain area off the Maryland coast. The Maryland state legislature enacts a law that bans all commercial fishing in that area. The state law most likely violates:

Chris would like to conduct a study on the effectiveness of a new substance-abuse treatment program. he has a sample of participants go through the program and he uses as a comparison group people who did not volunteer for the program but were eligible. chris has used a(n) design for his study.

There are 25 elements found in living things. how many of these elements are found in some organisms but not all? 1 , 6 , 19 , 25

Anode is a point on a wave where there is no vibration. a. true b. false