Why is salt used for dna isolation?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

Which of the following statements about polysaccharides are correct? choose all that apply. cellulose is a linear, unbranched polymer of glucose monomers. starch is typically more highly branched than glycogen. cellulose is a major component of both plant and animal cells. glycogen is a storage form of glucose in animal cells. glycogen is the most abundant organic compound on earth. starch and cellulose are found in plants.