Which statement describes the formation of galaxies? they begin in nebulas. heat and gases contract. gravity causes stars to cluster. dust and gases contract.

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

What is the correct trna sequence that would match the following mrna sequence.gcgaua

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.