Question: Answer the following question given this paragraph: Figure 39.19 The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen. It is the iron in hemoglobin that gives blood its red color. Q: What does hemoglobin in blood carry to the cells? A:
OPTIONS:
- methane
- carbon dioxide
- nitrogen
- oxygen
Answer: oxygen

input with options: Answer the following question given this paragraph: Force is defined as a push or pull acting on an object. There are several fundamental forces in the universe, including the force of gravity, electromagnetic force, and weak and strong nuclear forces. When it comes to the motion of everyday objects, however, the forces of interest include mainly gravity, friction, and applied force. Applied force is force that a person or thing applies to an object. Q: Push or pull acting on an object is also called? A:
OPTIONS:
- Gravity.
- space
- effort
- force
output: force

Q: Answer the following question given this paragraph: and procaine. Not only do catalysts greatly increase the rates of reactions, but in some cases such as in petroleum refining, they also control which products are formed. The acceleration of a reaction by a catalyst is called catalysis. Q: Catalysts can greatly increase the rates of chemical what? A:

OPTIONS:
- photosynthesis
- decay
- effects
- reactions

A: reactions

input: OPTIONS:
- circuits
- levers
- tools
- machines Now, answer this question: Answer the following question given this paragraph: In this chapter, you saw how pressure and buoyancy of fluids can be used to make work easier from raising a car on a lift to floating a ship on the ocean. Devices that make work easier are called machines in physics. Q: In physics, what do you call devices that make work easier? A:
A:
output: machines

Answer the following question given this paragraph: Some people think that gravity moves food through the esophagus. If that were true, food would move through the esophagus only when you are sitting or standing upright. In fact, because of peristalsis, food can move through the esophagus no matter what position you are ineven upside down! Just don't try to swallow food when you are upside downyou could choke!. Q: What process moves food through the esophagus no matter which position the body is in? A:

OPTIONS:
- mastication
- proteolysis
- homeostasis
- peristalsis

Answer: peristalsis

Q: Answer the following question given this paragraph: An underground layer of rock that is saturated with groundwater is called an aquifer . A diagram of an aquifer is pictured below ( Figure below ). Aquifers are generally found in porous rock, such as sandstone. Water infiltrates the aquifer from the surface. The water that enters the aquifer is called recharge . Q: What is the name for an underground layer of rock that is saturated with groundwater? A:

OPTIONS:
- gradient
- aqueous cavity
- artesian well
- aquifer

A:
aquifer