Christopher Columbus’s most significant accomplishment is -heading Spain’s leading scientific society
-beginning the age of European exploration
-creating a greater interest in marine life in Europe
-building positive relationships between natives and Europeans

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.