Your class is collecting macroinvertebrates (insects & other small animals found in water) to determine the pollution level in a local creek. each macroinvertebrate that you collect has a 'pollution rating' between 0 and 10. a rating of 0 means the animal is usually found in very polluted water. a rating of 10 means it is only found in very clean water. a total of 100 insects are caught, and the total number of points is added up. based on the stream ecology class notebook, what conclusion can you draw about the creek?

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.

On his trip to the galapagos islands, darwin determined that animals on the islands

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.