Diffusion can be defined as
question 7 options:

movement through a cell membrane by active transport using energy from atp

movement of particles from a region of high concentration to a region of low concentration

movement of particles from a region of low concentration to a region of high concentration

the movement of particles up/against their natural concentration gradient.

What is involved in redox reactions

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.

Eutrophication caused by human nutrient pollution.