After visiting a nature center, students were asked to contrast their observations based on location. which of these students followed those directions? a. amy: wildlife in or near water = turtles, crayfish, goldfish non-water wildlife = fox, deer, bobcat b. craig: wildlife with hair or fur = fox, deer, bobcat wildlife without hair or fur = turtle, crayfish, goldfish c. megan: mammals = fox, deer, bobcat other = turtle, crayfish, goldfish d. luke: observed = fox, deer, bobcat, turtle, crayfish, goldfish not observed = water snake, squirrel

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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.

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?