Plates are puzzle-piece like sections of the lithosphere that move over the asthenosphere, carrying pieces of continental and oceanic crust. which statement about the plates can geologists assume is true? the plates are less than 70 km in thickness. the plates assist in forming earth’s magnetic field. the plates are denser than the oceanic crust. the plates experience little pressure from the weight of rocks.

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.