What did african americans who migrated from the south during the early 20th century hope to find? a. better jobs and less discrimination b. cultural enrichment c. segregated schools and neighborhoods d. support for jim crow laws

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

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