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Q: What causes genetic disorders? Read this paragraph and choose the correct option from the provided answers: Sequencing the human genome has increased our knowledge of genetic disorders. These are diseases caused by mutations. They may be caused by single gene mutations or the failure of chromosomes to separate correctly during meiosis. Choices: - parasites - proteins - pollution - mutations A:
(Answer)
mutations

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Q: Friction causes the molecules on rubbing surfaces to move faster, which produces what? Read this paragraph and choose the correct option from the provided answers: You know that friction produces heat. That's why rubbing your hands together makes them warmer. But do you know why the rubbing produces heat? Friction causes the molecules on rubbing surfaces to move faster, so they have more heat energy. Heat from friction can be useful. It not only warms your hands. It also lets you light a match (see Figure below ). On the other hand, heat from friction can be a problem inside a car engine. It can cause the car to overheat. To reduce friction, oil is added to the engine. Oil coats the surfaces of moving parts and makes them slippery so there is less friction. Choices: - life - precipitation - cold - heat A:
(Answer)
heat

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Q: What happens when development of nervous system is disturbed? Read this paragraph and choose the correct option from the provided answers: Neurodevelopmental Disorders Neurodevelopmental disorders occur when the development of the nervous system is disturbed. There are several different classes of neurodevelopmental disorders. Some, like Down Syndrome, cause intellectual deficits. Others specifically affect communication, learning, or the motor system. Some disorders like autism spectrum disorder and attention deficit/ hyperactivity disorder have complex symptoms. Autism Autism spectrum disorder (ASD) is a neurodevelopmental disorder. Its severity differs from person to person. Estimates for the prevalence of the disorder have changed rapidly in the past few decades. Current estimates suggest that one in 88 children will develop the disorder. ASD is four times more prevalent in males than females. Choices: - vascular disorders - muscular disorders - neurochemical disorders - neurodevelopmental disorders A:
(Answer)
neurodevelopmental disorders