PLEASE HELP Step 5: The blood then goes through the side of the to the It leaves the heart through the . Then the blood travels through the releasing to the cells for and absorbs .The gas exchange occurring here between the oxygen and carbon dioxide molecules occurs in the of the organs. The blood then goes back to the side of the through the veins and will go through the again.

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

Apart of an ecosystem that can restrict the growth of a population is referred to as

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.