Evolution and the Themes of Biology Identify global challenges that may require a biological solution. pollution acid rain / ocean acidification antibiotic-resistant pathogens Describe how an organism?s environmental adaptations result from evolution. individuals best suited to their environment are more likely to survive and reproduce more individuals will have these advantageous traits in subsequent generations (if they are heritable) Identify (and give examples) of the different levels of the hierarchy of biology. Domain: Eukarya Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Ursidae Genus: Ursus Species: Ursus Maritimus Describe how the food competition hypothesis (in the context of giraffes? long necks) was not supported by data.