The diagram below shows the poistion of earth at four different times during the year. In what positions would the united states receive equal amounts of daylight hours

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During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?