Which of the following is an example of a primary consumer gaining energy? A. A robin swallowing a worm
B. A bear carrying a salmon
C. A caterpillar crawling up a leaf
D. A rabbit eating shrubs

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.