Given a scientific passage and an answer, generate a question for the given answer.

[EX Q]: Passage: Triglycerides are the main form of stored energy in animals. This type of lipid is commonly called fat. Triglycerides are composed of a glycerol and three fatty acid chains. An example is shown in Figure below . In humans, triglycerides are a mechanism for storing unused calories, and their high concentration in blood correlates with the consumption of excess starches and other carbohydrate-rich foods. Answer: triglycerides
[EX A]: What stored form of energy is made up of glycerol and three fatty acid chains?

[EX Q]: Passage: Protostomes and Deuterostomes Bilaterally symmetrical, triploblastic eucoelomates can be divided into two groups based on differences in their early embryonic development. Protostomes include phyla such as arthropods, mollusks, and annelids. Deuterostomes include. Answer: protostomes and deuterostomes
[EX A]: What are the two groups that tripoblastic eucoelomates can be divided into based on early embryonic development differences?

[EX Q]: Passage: Food waste enters the large intestine from the small intestine in a liquid state. As the waste moves through the large intestine, excess water is absorbed from it. The remaining solid waste is called feces. After a certain amount of feces have collected, a sphincter relaxes to let the feces pass out of the body through the anus. This is elimination. Answer: water
[EX A]:
What substance is removed from waste as it passes through the large intestine?