Apopulation of white, grey, and black lizards lives on a volcanic island, and each phenotypic color has an equal chance of survival. however, after the latest volcanic eruption, 75 percent of the island was covered with volcanic ash and hardened lava flows. this event caused the black lizards to be naturally selected over the white and grey lizards. this change is an example of what type of microevolution? a) stabilizing selection b) normal distribution c) directional selection d) disruptive selection

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d.a round-trip ride to school and back

Name the organs of humanelemintary canal.

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.