2.Which of these processes in the rock cycle could be happening in the stage labeled 2?A. Folding and mountain buildingB. Changes due to heat and pressureC. Compaction and cementation of weathered sedimentsD. Subduction of an oceanic plate beneath a continental plate3. How does visible light differ from radio waves, microwaves, and the other components of the electromagnetic spectrum?a. Visible light consists of particles, while the other components exist as waves. b.Visible light exists as waves, while the other components exist as particles. c.Visible light has a different range of frequencies and wavelengths. d.Visible light travels at a faster speed

Apuppy’s tendency to chew is inherited through which of the following? a. through learned behavior b.through genes c. through seasonal cycles d. through hibernation

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.