Answer the following question given this paragraph: Discussion Quite a trip (if it survives)! Note that this distance is the total distance traveled by the fly. Displacement is actually zero for complete revolutions because they bring the fly back to its original position. The distinction between total distance traveled and displacement was first noted in One-Dimensional Kinematics. Q: Where was the distinction between total distance traveled and displacement first noted? Choices: - uncertainty principle - Newton's first law - string theory - one-dimensional kinematics A:
one-dimensional kinematics
Answer the following question given this paragraph: An aquifer is a layer of saturated porous rock. It lies below the water table. An impermeable layer, such as clay, is below the aquifer. Q: What is a layer of saturated porous rock? Choices: - a shear - an overhang - a quarry - an aquifer A:
an aquifer
Q: 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? Choices: - nutrients - pathogens - proteins - chemical signals A:
A: chemical signals
Question: Answer the following question given this paragraph: Producers are organisms that produce food for themselves and other organisms. They use energy and simple inorganic molecules to make organic compounds. The stability of producers is vital to ecosystems because all organisms need organic molecules. Producers are also called autotrophs. There are two basic types of autotrophs: photoautotrophs and chemoautotrophs. Q: What is another name for producers? Choices: - plants - rotifers - allergens - autotrophs A:
Answer: autotrophs
*Question*
Answer the following question given this paragraph: Channel proteins provide an open channel or passageway through the cell membrane for molecules to move across. Many channel proteins allow the diffusion of ions. Ions are charged atoms. The charge makes it difficult to cross the cell membrane without assistance. Channel proteins are specific for the molecule they transport. For example a sodium ion crosses the membrane through a channel protein specific for sodium ions. Q: Ions are charged what? Choices: - molecules - protons - isotopes - atoms A:
**Answer**
atoms
Answer the following question given this paragraph: The earth is attracted to the sun by the force of gravity. Why doesn't the earth fall into the sun?. Q: What attracts the earth to the sun? Choices: - weight - light - the moon - gravity A:
gravity