One example of a changing biotic factor in an ecosystem would be a) the seasonal migration of birds. b) the seasonal changes in temperature. c) an increase in sunlight during the summer. d) an increase in rainfall during the spring.

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

Which of the following forest management practices is best for reestablishing areas of forest?

Which particle controls what element an atom is?