Answer the following question given this paragraph: Q: Prions are slow-acting, virtually indestructible infectious proteins that cause diseases of what vital organ in mammals? Choices: - heart - lung - liver - brain A:
brain
Answer the following question given this paragraph: 34.4 Digestive System Regulation The brain and the endocrine system control digestive processes. The brain controls the responses of hunger and satiety. The endocrine system controls the release of hormones and enzymes required for digestion of food in the digestive tract. Q: What part of the body controls the responses of hunger and satiety? Choices: - heart - small intestine - blood - brain A:
brain
Q: Answer the following question given this paragraph: The force that a magnet exerts on certain materials, including other magnets, is called magnetic force . The force is exerted over a distance and includes forces of attraction and repulsion. North and south poles of two magnets attract each other, while two north poles or two south poles repel each other. A magnet can exert force over a distance because the magnet is surrounded by a magnetic field . In the Figure below , you can see the magnetic field surrounding a bar magnet. Tiny bits of iron, called iron filings, were placed under a sheet of glass. When the magnet was placed on the glass, it attracted the iron filings. The pattern of the iron filings shows the lines of force that make up the magnetic field of the magnet. The concentration of iron filings near the poles indicates that these areas exert the strongest force. You can also see how the magnetic field affects the compasses placed above the magnet. To see an animated magnetic field of a bar magnet, go to this URL: http://micro. magnet. fsu. edu/electromag/java/magneticlines/. Q: The force that a magnet exerts on certain materials is called what? Choices: - stellar force - velocity force - centripetal force - magnetic force A:
A: magnetic force
Question: Answer the following question given this paragraph: Did you ever see a scene like the one in Figure below ? In many parts of the world, trees lose their leaves in autumn. The leaves turn color and then fall from the trees to the ground. As the leaves are falling, they have kinetic energy. While they are still attached to the trees they also have energy, but it's not because of motion. Instead, they have stored energy, called potential energy . An object has potential energy because of its position or shape. For example leaves on trees have potential energy because they could fall due to the pull of gravity. Q: What is another term for stored energy? Choices: - inertia - mechanical energy - latency - potential energy A:
Answer: potential energy
*Question*
Answer the following question given this paragraph: Basal Ganglia Interconnected brain areas called the basal ganglia (or basal nuclei), shown in Figure 35.20b, play important roles in movement control and posture. Damage to the basal ganglia, as in Parkinson's disease, leads to motor impairments like a shuffling gait when walking. The basal ganglia also regulate motivation. For example, when a wasp sting led to bilateral basal ganglia damage in a 25-year-old businessman, he began to spend all his days in bed and showed no interest in anything or anybody. But when he was externally stimulatedas when someone asked to play a card game with himhe was able to function normally. Interestingly, he and other similar patients do not report feeling bored or frustrated by their state. Thalamus The thalamus (Greek for "inner chamber"), illustrated in Figure 35.24, acts as a gateway to and from the cortex. It receives sensory and motor inputs from the body and also receives feedback from the cortex. This feedback mechanism can modulate conscious awareness of sensory and motor inputs depending on the attention and arousal state of the animal. The thalamus helps regulate consciousness, arousal, and sleep states. A rare genetic disorder called fatal familial insomnia causes the degeneration of thalamic neurons and glia. This disorder prevents affected patients from being able to sleep, among other symptoms, and is eventually fatal. Q: What helps to regulate consciousness, arousal, and sleep states? Choices: - hypothalamus - hippocampus - cerebral cortex - thalamus A:
**Answer**
thalamus
*Question*
Answer the following question given this paragraph: There is a great deal of evidence that the Universe started with a big bang. The Big Bang theory is the most widely accepted cosmological explanation of how the Universe formed. Think about the expanding Universe, then reverse it. If we start at the present and go back into the past, the Universe gets smaller. What is the end result of a contracting Universe? A point. Q: What do we call the most widely accepted cosmological explanation of how the universe formed? Choices: - big crunch theory - singularity theory - big light theory - big bang theory A:
**Answer**
big bang theory