Dependent, Independent, and Confounding Variables The zookeepers have hypothesized that large cats must consume the bones in whole animal carcases to obtain sufficient calcium in their diet to build and maintain bone structure. They have monthly blood calcium levels and annual x-ray images for three lions in their exhibit under their current diet of cuts of meat. They plan on changing the diet to consist primarily of whole animal carcases including bones. They will continue to take blood samples and x-ray images in the same way over the course of the next year. Identify the dependent, independent, and confounding variables in this scenario