Which two scientists are credited for the invention of the first microscope? Check all that apply. Hans Janssen Zacharias Janssen Robert Hooke Rudolf Virchow Anton van Leeuwenhoek

What is the importantence of the carbon and nitretan cycles in the environment

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations

This is the interaction of two organisms where one is and the other is neither nor harmed.