Like we have both just seen a ghost what does this mean ? ( the crossover)

Read the sample student claim and the reasons listed for making this claim. claim: although many people argue that medical testing on animals is a violation of animal rights, the benefits it yields for society far outweigh any argument that can be made. reason #1: animal research has yielded both pain-relieving and life-saving drugs for humans. reason #2: laws prohibit scientists from using animal-based research in cases where non-animal testing would produce equally clear and valid results.

The room was gaudy with its leather couch and purple walls

Experiments were conducted to try to teach chimpanzees sign language