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

Input: Consider Input: Passage: The heart is a muscular organ in the chest that consists mainly of cardiac muscle. It pumps blood through blood vessels by repeated, rhythmic contractions. Blood flows through four chambers of the heart when it beats. Heartbeat is controlled by electrical signals from special cells within the heart called the pacemaker. Answer: cardiac muscle

Output: What type of muscle makes up most of the heart?

Input: Consider Input: Passage: Christopher Auyeung, using bat image by User:Rugby471/Wikimedia Commons. Bats use echolocation to identify the location of objects . CC BY-NC 3.0 (bat image available under public domain). Answer: echolocation

Output: What do bats use to determine the location of objects?

Input: Consider Input: Passage: 11.1 | Interactions of Skeletal Muscles, Their Fascicle Arrangement, and Their Lever Systems By the end of this section, you will be able to: Compare and contrast agonist and antagonist muscles Describe how fascicles are arranged within a skeletal muscle Explain the major events of a skeletal muscle contraction within a muscle in generating force To move the skeleton, the tension created by the contraction of the fibers in most skeletal muscles is transferred to the tendons. The tendons are strong bands of dense, regular connective tissue that connect muscles to bones. The bone connection is why this muscle tissue is called skeletal muscle. Answer: tendons
Output: Strong bands of dense, regular connective tissue that connect muscles to bones are called what?