Why is the planet Earth capable of sustaining all three forms of water Position of Earth to the Sun
O Rotation of the Earth throughout the day
Movement of the material in the inner core
Revolution of the Moon around the Earth

What are some things that limit population growth?

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.

The effect of a hormone on a target cell may be decreased by the presence of