Which statement best compares a trace fossil to a fossil that forms as a result of an entire organism being trapped in amber? Both show the exact structure of the organism. Both require that the hard parts of the organism dissolve. Both form as a result of the organism leaving imprints in sediment. Both can possibly be used to study the organism's size.

An experiment is conducted to see if cats preferred skim milk or 2% milk. a cup of skim milkwas put out for 5 kittens and then measured how much the kittens drank over the course of aday. following a cup of 2% milk was purout for the skittens and then masured how much thekittens drank over the course of a day. the same kittens were used and the milk was served atthe same temperature. it was discovered that the cats liked the 2% milk more than the skimmilk. what is the dependent variable in this experiment?