instruction:
Given a scientific passage and an answer, generate a question for the given answer.
question:
Passage: CHAPTER SUMMARY 37.1 Types of Hormones There are three basic types of hormones: lipid-derived, amino acid-derived, and peptide. Lipid-derived hormones are structurally similar to cholesterol and include steroid hormones such as estradiol and testosterone. Amino acid-derived hormones are relatively small molecules and include the adrenal hormones epinephrine and norepinephrine. Peptide hormones are polypeptide chains or proteins and include the pituitary hormones, antidiuretic hormone (vasopressin), and oxytocin. Answer: peptide
answer:
There are three basic types of hormones: lipid-derived, amino acid-derived, and what?

question:
Passage: The range is the total spread of values. It gives you an idea of the variation in the measurements. The range is calculated by subtracting the smallest value from the largest value. For the data in Table above , the range in numbers of vehicles by type is: 150 - 50 = 100. Answer: the range
answer:
What is calculated by subtracting the smallest value from the largest value?

question:
Passage: Partly movable joints allow only very limited movement. Bones at these joints are held in place by cartilage. The ribs and sternum are connected by partly movable joints. Answer: cartilage
answer:
What are the bones in partly movable joints held in place by?