Answer the following question given this paragraph: The muscular system consists of all the muscles in the body. This is the body system that allows us to move. You also depend on many muscles to keep you alive. Your heart, which is mostly muscle, pumps blood around your body. Q: What body system allows humans to move? Choices: - digestive system - abnormal system - lung system - muscular system A:
muscular system
Answer the following question given this paragraph: Total internal reflection allows the light to travel down the optical fiber and not pass through the sides of the tube. The light continuously reflects from the inside of the tube and eventually comes out the end. Optical fibers make interesting lamps but they are also used to transport telephone and television signals. Q: What kind of fibers are used to transport telephone and television signals? Choices: - touch fibers - process fibers - hair fibers - optical fibers A:
optical fibers
Q: Answer the following question given this paragraph: 30.3 The reproductive adaptations of angiosperms include flowers and fruits. Q: In angiosperms, flowers and fruits are adaptations essential for what process? Choices: - variation - death - photosynthesis - reproduction A:
A: reproduction
Question: Answer the following question given this paragraph: Protists are the simplest eukaryotes. They are easiest to define by what they are not. Protists are not animals, plants, or fungi. Q: Protists are the simplest of what? Choices: - prokaryotes - plants - fungi - eukaryotes A:
Answer: eukaryotes
*Question*
Answer the following question given this paragraph: Figure 22.13 (a) In the planetary model of the atom, an electron orbits a nucleus, forming a closed-current loop and producing a magnetic field with a north pole and a south pole. (b) Electrons have spin and can be crudely pictured as rotating charge, forming a current that produces a magnetic field with a north pole and a south pole. Neither the planetary model nor the image of a spinning electron is completely consistent with modern physics. However, they do provide a useful way of understanding phenomena. Q: What model of the atom features an electron orbiting a nucleus, forming a closed-current loop and producing a magnetic field with a north pole and a south pole?. Choices: - hydrogen model - solar model - gravitational model - planetary model A:
**Answer**
planetary model
Q: Answer the following question given this paragraph: A change of state occurs whenever matter changes from one state to another. Changes of state are physical changes in matter. They are reversible changes that do not change matter's chemical makeup or chemical properties. Q: What do you call reversible changes that do not change matter's chemical makeup or chemical properties? Choices: - potential changes - element changes - chemical changes - physical changes A:
A: physical changes