SCI 225 unit 2 exam with 100% correct answers 2024

SCI 225 unit 2 examMilutin Milankovic - correct answer The three orbital parameters of eccentricity, obliquity, and precession are collectively known as cycles named after this scientist Precession (Wobble) - correct answer Name the orbital parameter movement is similar to the movement of a spinning top Obliquity (tilt) - correct answer This orbital parameter changes on a time scale of 41,000 years Interglacial periods tend to occur roughly every 100,000 years - correct answer Over the last 400,000 years, what is the average interval between interglacial periods (as reflected by peak high temperatures)? Interglacial periods tend to be associated with slightly more oval orbit (higher eccentricity) and higher tilt of Earth's axis. - correct answer Interglacial periods seem to align with what amount of eccentricity (shape of Earth's orbit) and what amount of tilt of Earth's axis? Phylogenetic Species Concept - correct answer Smallest group of individuals that share a common ancestor Permian Mass Extinction - correct answer Which mass extinction event caused a larger percentage of genera on earth to go extinct : the Permian Mass Extinction or the Cretaceous Mass Extinction? Maximum parsimony - correct answer Phylogenetic trees with the fewest evolutionary transitions (speciation events) is most likely to be correct. Given an example of how climate change can trigger a mass extinction event. - correct answer Formation of Pangea triggered extensive volcanic activity as well as causing changes in ocean currents. The volcanic activity caused changes in the Earth's climate. The changes in ocean current changed the distribution of heat on Earth. Both factors—volcanic activity and ocean currents—changed the global climate and caused massive extinction on land and sea.