Zoe is in an experiment where pressing a button in response to photos of a dog, rabbit or cat earns her money. Afterwards, the photos of the dog and rabbit are presented together at the same time and pressing the button does not result in money. On separate trials within the same session, the photo of the cat by itself is also presented and pressing the button does not result in money. Which cue do you expect to see the most robust extinction to? options:
a)photos of the dog and rabbit will be equal with more robust extinction than the cat photo

b)photo of the cat will have the most robust extinction

c)there will be equal extinction to all 3 photos

d)photo of the dog will have the most robust extinction

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals

dude the first thing it says is that copied answers will get a zero. plus it would take anyone on an incredibly long time to answer. ive seen 2 people asking the exact same question and their questions got taken down. i have the assignment too, and im in the progress of doing it. i suggest going to a more private website, because this is the first place teachers look.

answer; fulfilling a goal of the president's council of physical fitness and sports;