Killing moths with carbon dioxide. A University of South Florida biologist conducted an experiment to determine whether increased levels of carbon dioxide kill leaf-eating moths (USF Magazine, Winter 1999). Moth larvae were placed in open containers filled with oak leaves. Half the containers had normal carbon dioxide levels, while the other half had double the normal level of carbon dioxide. Ten percent of the larvae in the containers with high carbon dioxide levels died, compared to 5% in the containers with normal levels. Assume that 80 moth larvae were placed, at random, in each of the two types of containers. Do the experimental results demonstrate that an increased level of carbon dioxide is effective in killing a higher percentage of leaf-eating moth larvae? Test using α = .01.
BIO A 101 (Human Bio Diversity) Week Two Johann Friedrich Blumenbach (1752 - 1840) “Father of physical anthropology” ❖ Used skull shape ❖ Believed Caucasus mountains were the origin of humanity because the people in that region were “the most beautiful” and a likely location for people to migrate from Blumenbach’s Hierarchy of Race Racial differences (e.g., in cranial shape) because of environmental and cultural differences but Blumenbach was unsure how So, the idea of physical plasticity was created meaning a race could change by moving to a new environment (environmentalism is used here but not in the sense most people think of it) Racial taxonomy changed from Linnaeus with his more ge