Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. her hypothesis was that pulse rate would change with different types of commercials. each person watched seven different commercials, averaging 30 seconds each. each person's pulse was taken before the commercial and then after each commercial. based on her experiment analisa concluded that a person's pulse rate changed when the person watched different types of commercials. which component is missing from analisa's experiment? a. a question b. a hypothesis c. a control group d. a description of the experiment

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions,because prokaryotes don't have nuclei.