Answer the following question given this paragraph: Reflecting surfaces do not have to be flat. The most common curved mirrors are spherical. A spherical mirror is called a concave mirror if the center of the mirror is further from the viewer than the edges are. A spherical mirror is called a convex mirror if the center of the mirror is closer to the viewer than the edges are. Q: The most common curved mirrors are what? A:
OPTIONS:
- solid
- concave
- convex
- spherical

Answer: spherical

Question: Answer the following question given this paragraph: Descending fibers from the cerebrum have branches that connect to neurons in the pons. Those neurons project into the cerebellum, providing a copy of motor commands sent to the spinal cord. Sensory information from the periphery, which enters through spinal or cranial nerves, is copied to a nucleus in the medulla known as the inferior olive. Fibers from this nucleus enter the cerebellum and are compared with the descending commands from the cerebrum. If the primary motor cortex of the frontal lobe sends a command down to the spinal cord to initiate walking, a copy of that instruction is sent to the cerebellum. Sensory feedback from the muscles and joints, proprioceptive information about the movements of walking, and sensations of balance are sent to the cerebellum through the inferior olive and the cerebellum compares them. If walking is not coordinated, perhaps because the ground is uneven or a strong wind is blowing, then the cerebellum sends out a. Q: Descending fibers from the cerebrum have branches that connect to neurons in the pons. those neurons project into the cerebellum, providing a copy of motor commands sent to this? A:
OPTIONS:
- neurotransmitters
- umbilical cord
- cerebral cortex
- spinal cord
Answer: spinal cord

input with options: Answer the following question given this paragraph: Protection. The skeleton supports and protects the soft organs of the body. For example, the skull surrounds the brain to protect it from injury. The bones of the rib cage help protect the heart and lungs. Q: What supports and protects the soft organs of the body? A:
OPTIONS:
- Skin
- skull
- Muscle
- skeleton
output: skeleton

Q: Answer the following question given this paragraph: Hormones control many cell activities, so they are very important for homeostasis. But what controls the hormones themselves? Most hormones are regulated by feedback mechanisms. A feedback mechanism is a loop in which a product feeds back to control its own production. Most hormone feedback mechanisms involve negative feedback loops. Negative feedback keeps the concentration of a hormone within a narrow range. Q: What is the term for a loop in which a product feeds back to control its own production? A:

OPTIONS:
- Recondition Mechanism
- load mechanism
- Adaptive Mechanism
- feedback mechanism

A: feedback mechanism

input: OPTIONS:
- differential chemistry
- thermal chemistry
- molecular chemistry
- physical chemistry Now, answer this question: Answer the following question given this paragraph: Physical chemistry is the study of macroscopic properties, atomic properties, and phenomena in chemical systems. A physical chemist may study such things as the rates of chemical reactions, the energy transfers that occur in reactions, or the physical structure of materials at the molecular level. Q: What is the study of macroscopic properties, atomic properties, and phenomena in chemical systems? A:
A:
output: physical chemistry

Question: Answer the following question given this paragraph: Altitude is height above sea level. The density of air decreases with height. There are two reasons. At higher altitudes, there is less air pushing down from above. Also, gravity is weaker farther from Earth's center. So at higher altitudes, air molecules can spread out more. Air density decreases. You can see this in Figure below . Q: Altitude is height above what? A:
OPTIONS:
- the earth's core
- the earth's surface
- the water table
- sea level
Answer:
sea level