Biology, 16.12.2020 18:00 ayeletstrauss
Give one example of how humans can affect the biosphere. How might that impact the other spheres in the Earth system?
Answers: 1
Biology, 21.06.2019 19:30
Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5
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Biology, 21.06.2019 21:00
This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment
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Biology, 22.06.2019 10:50
Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%
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Biology, 22.06.2019 11:20
Archeologists have discovered three sites showing conclusive evidence for the mastery of fire in tanzania, from a period slightly after the time that homo habilis was present in africa. these sites clearly were founded by homo erectus, the descendent species of homo habilis that migrated north, out of africa and into asia. homo erectus was known to have mastered fire, from ample evidence at sites in asia. there is no reason to attribute mastery of fire to homo ergaster, the descendent species of homo habilis that remained in africa.which of the following is an assumption on which the argument depends? (a) before their migration, homo erectus occupied african territory as far south as tanzania.(b) the strain of migration provided the selective pressure motivating homo erectus‘ mastery of fire.(c) homo ergaster would not have derived as much benefit from the mastery of fire as did homo erectus.(d) homo ergaster inherited all cultural knowledge from homo habilis, a species that did not have mastery of fire.(e) homo ergaster did not occupy regions as far south as tanzania until well after the time of these three sites.
Answers: 2
Give one example of how humans can affect the biosphere. How might that impact the other spheres in...
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