BIOL 2051 Chapter : Control Of Viruses And Microbial Growth
Document Summary
It is not more efficient if you have to go fast or short distances. East africa: geology- two continental plates coming together; volcanoes, dating- good for giving absolute dates; good for fossil preservation; radiometric dating; many fossils found through erosion. Pliocene fossils: kenyanthropus platyops- east africa; flat face; more derived, 3. 5-3. 2 million years ago; contemporary with. Lucy (al-288-1)- significant because she is very complete (40%); 3. 2 mya; shows bipedalism at an early age (afarensis) Selam (dik 1/1)- nearly complete juvenile skeleton (60% complete); a child about 3 years old (size of modern chimp); 3. 3 mya (afarensis) Australopithecus in size and shape, bipedal: a. robustus (2-1. 5 mya, geography- south africa, cranial traits- similar to boisei; molars are still large but not as large as boisei, postcranial traits- similar to boisei. Gracile & robust groups: gracile (smaller)- afarensis; africannius, robust (larger)- aethiopicus; boisei; robustus.
