input: OPTIONS:
- strong hands
- vocal cords
- powerful lips
- healthy lungs Now, answer this question: Answer the following question given this paragraph: You don't have to be a musician to know that playing a wind instrument like the trumpet takes a lot of air. Having healthy lungs is necessary to play a trumpet or other wind instrument. The lungs are part of the respiratory system. Q: What is necessary in a person who wishes to play wind instruments? A:
A:
output: healthy lungs

Answer the following question given this paragraph: Visible Light The range of photon energies for visible light from red to violet is 1.63 to 3.26 eV, respectively (left for this chapter's Problems and Exercises to verify). These energies are on the order of those between outer electron shells in atoms and molecules. This means that these photons can be absorbed by atoms and molecules. A single photon can actually stimulate the retina, for example, by altering a receptor molecule that then triggers a nerve impulse. Photons can be absorbed or emitted only by atoms and molecules that have precisely the correct quantized energy step to do so. For example, if a red photon of frequency f encounters a molecule that has an energy step,. Q: What kind of light ranges from red to violet? A:

OPTIONS:
- infrared light
- x rays
- ultraviolet light
- visible light

Answer: visible light

Problem: OPTIONS:
- Molecular Bromine Gas
- photons bromine gas
- gaseous bromine gas
- elemental bromine gas
Q: Answer the following question given this paragraph: Elemental bromine gas can be generated by reacting sodium bromide with elemental chlorine. The other product is sodium chloride. Write a balanced chemical equation for this reaction. Saylor URL: http://www. saylor. org/books. Q: What gas can be generated by reacting sodium bromide with elemental chlorine? A:
Answer: elemental bromine gas

Problem:OPTIONS:
- nutrients
- pathogens
- proteins
- chemical signals

Answer the following question given this paragraph: The type of chemical signal a cell will send differs depending on the distance the message needs to go. For example, hormones , ions, and neurotransmitters are all types of signals that are sent depending on the distance the message needs to go. Endocrine signals are hormones, produced by endocrine organs. These signals travel through the blood stream to reach all parts of the body. Q: Hormones, ions, and neurotransmitters are all types of what? A:
****
A: chemical signals

Answer the following question given this paragraph: A unique feature of echinoderms is their water vascular system. This is a network of canals that extends along each body part. In most echinoderms, the canals have external projections called tube feet (see Figure below ). The feet have suckers on the ends. Muscle contractions force water into the feet, causing them to extend outward. As the feet extend, they attach their suckers to new locations, farther away from their previous points of attachment. This results in a slow but powerful form of movement. The suckers are very strong. They can even be used to pry open the shells of prey. Q: What is considered to be a unique feature of echinoderms? A:
OPTIONS:
- oil vascular system
- air vascular system
- iron vascular system
- water vascular system
water vascular system

Answer the following question given this paragraph: Scientists think the solar system formed from a big cloud of gas and dust, called a nebula . This is the solar nebula hypothesis. The nebula was made mostly of hydrogen and helium. There were heavier elements too. Gravity caused the nebula to contract ( Figure below ). Q: Scientists think the solar system formed from a big cloud of gas and dust called what? A:
OPTIONS:
- comet
- supernova
- Oort cloud
- nebula

Answer:
nebula