Q: What is the connection between the two hemispheres of the brain called?   Read this paragraph and choose the correct option from the provided answers:  Left Brain, Right Brain Popular media often refer to right-brained and left-brained people, as if the brain were two independent halves that work differently for different people. This is a popular misinterpretation of an important neurological phenomenon. As an extreme measure to deal with a debilitating condition, the corpus callosum may be sectioned to overcome intractable epilepsy. When the connections between the two cerebral hemispheres are cut, interesting effects can be observed. If a person with an intact corpus callosum is asked to put their hands in their pockets and describe what is there on the basis of what their hands feel, they might say that they have keys in their right pocket and loose change in the left. They may even be able to count the coins in their pocket and say if they can afford to buy a candy bar from the vending machine. If a person with a sectioned corpus callosum is given the same instructions, they will do something quite peculiar. They will only put their right hand in their pocket and say they have keys there. They will not even move their left hand, much less report that there is loose change in the left pocket. The reason for this is that the language functions of the cerebral cortex are localized to the left hemisphere in 95 percent of the population. Additionally, the left hemisphere is connected to the right side of the body through the corticospinal tract and the ascending tracts of the spinal cord. Motor commands from the precentral gyrus control the opposite side of the body, whereas sensory information processed by the postcentral gyrus is received from the opposite side of the body. For a verbal command to initiate movement of the right arm and hand, the left side of the brain needs to be connected by the corpus callosum. Language is processed in the left side of the brain and directly influences the left brain and right arm motor functions, but is sent to influence the right brain and left arm motor functions through the corpus callosum. Likewise, the left-handed...   Choices:  - cerebral cortex  - spinal cord  - cranial septum  - corpus callosum   A:
corpus callosum
Q: What kind of motion characterizes waves?   Read this paragraph and choose the correct option from the provided answers:  Waves are characterized by their repetitive motion. Imagine a toy boat riding the waves in a wave pool. As the water wave passes under the boat, it moves up and down in a regular and repeated fashion. While the wave travels horizontally, the boat only travels vertically up and down. The Figure below shows two examples of waves.   Choices:  - round  - breathing  - bending  - repetitive   A:
repetitive
Q: Q: Concentration of what, the substance left behind when ocean water evaporates, is about 3.5 percent?   Read this paragraph and choose the correct option from the provided answers:  Dissolved mineral salts wash into the ocean. As ocean water evaporates, it leaves the salts behind. This makes the water saltier. Ocean water is about 3.5 percent salts. The main salt is sodium chloride.   Choices:  - hydrogen  - sugar  - quartz  - salts   A:
A: salts
Question: Q: Matter can exist either as a pure substance or as a combination of what?   Read this paragraph and choose the correct option from the provided answers:  The properties of matter, both physical and chemical, depend on the substances that matter is made of. Matter can exist either as a pure substance or as a combination of different substances.   Choices:  - Different Liquids  - much substances  - different vapors  - different substances   A:
Answer: different substances
*Question*
Q: In grazing, a predator partially eats but does not kill what?   Read this paragraph and choose the correct option from the provided answers:  In grazing , the predator eats part of the prey but does not usually kill it. You may have seen cows grazing on grass. The grass they eat grows back, so there is no real effect on the population. In the ocean, kelp (a type of seaweed) can regrow after being eaten by fish.   Choices:  - time  - pack  - predators  - prey   A:
**Answer**
prey
(Q).
Q: How many millions of years ago did pangaea begin breaking apart?   Read this paragraph and choose the correct option from the provided answers:  Pangaea has been breaking apart since about 250 million years ago. Divergent plate boundaries formed within the continents to cause them to rift apart. The continents are still moving apart. The Pacific is shrinking as the Atlantic is growing. The Appalachians ( Figure below ) are now on a passive margin. The mighty mountains have weathered and eroded to what they are today.   Choices:  - 600  - 400  - 500  - 250   A:
(A).

250