What organelle packages materials that will be shipped out of the cell?

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?