[OU.03] A star is moving towards Earth. An astronomer plans to measure the distance of the star from Earth by observing the red shift in its spectrum. Which of these statements best explains why the astronomer's method of measuring the star distance is inappropriate? The spectral shift of moving stars cannot be observed.
A red shift can be observed when the star moves away from Earth.
Common instruments cannot measure the red shift accurately.
Rate of motion of stars cannot be matched with the rate of measuring distances.

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Students commonly confuse saccharomyces cerevisiae and staphylococcus aureus when viewed on a microscope slide how could you microscopically differentiate