Pauqueen122 Pauqueen122 07-04-2020 Biology contestada These are tru or clase questions 1) T or F A flood in a forest could cause trees in that ecosystem to die. 2) T or F Human activities can have a either positive or negative effects on an ecosystem. 3) T or F Short-term environmental changes can affect individuals and populations of organisms. 4) T or F individuals can develop genetic traits that them to adapt to changes in their environment.