In order to explain how changes to physical components of an ecosystem affect populations, you must use data from observations and investigations. These data are also known as(1 point)%0D%0AResponses%0D%0A%0D%0Aa statement.%0D%0Aa statement.%0D%0A%0D%0Areasons.%0D%0Areasons.%0D%0A%0D%0Aevidence.%0D%0Aevidence.%0D%0A%0D%0Aan argument.
