Which scientist devised tests that helped confirm that bacteria and other microorganisms cause a variety of diseases? Robert Koch
Anton van Leeuwenhoek
Louis Pasteur
Alexander Fleming

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

Is there any solid scientific evidence that humans have been cloned?

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?