In an experiment, the speed of sound waves was compared to the density of the medium they passed through. Using the information in the data table below, describe the relationship between the density of the material and the speed of the sound waves. Explain why the relationship between the two exists, and hypothesize the relationship that light waves would have with the density of the materials

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.