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The ability of an organism to change internally or externally in relation to cha...
Answers: 2
Biology, 22.06.2019 11:00
Membrane vesicles containing an internal sodium chloride (nacl) concentration of 0.14 m are placed into separate beakers each containing a different solution. the first beaker contains 0.14 m sucrose, while the second beaker contains 0.14 m calcium chloride (cacl2). the temperature is 25°c. what is the solute potential inside the vesicles, expressed in units of mpa?
Answers: 2
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
Biology, 22.06.2019 21:30
Jellyfish sometimes squeeze in the sides of their bodies. this pushes a stream of water from the back end of their bodies. according to newton’s third law of motion, how will this behavior affect of the jellyfish ?
Answers: 1
English, 19.07.2019 11:30
Mathematics, 19.07.2019 11:30
Social Studies, 19.07.2019 11:30
Social Studies, 19.07.2019 11:30
Health, 19.07.2019 11:30
Mathematics, 19.07.2019 11:30
Mathematics, 19.07.2019 11:30
Social Studies, 19.07.2019 11:30
Social Studies, 19.07.2019 11:30