Answer the following question given this paragraph: Imagine the thrill of riding on a roller coaster like this one! The coaster slowly crawls to the top of the track and then flies down the other side. It also zooms around twists and turns at breakneck speeds. These changes in speed and direction are what make a roller coaster ride so exciting. Changes in speed or direction are called acceleration. Q: What is the term for changes in speed or direction, changes that make a roller coaster ride so exciting? Choices: - transmission - inclination - oscillation - acceleration A:
acceleration
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Answer the following question given this paragraph: Nucleic acids are biochemical molecules that contain oxygen, nitrogen, and phosphorus in addition to carbon and hydrogen. There are two main types of nucleic acids. They are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). Q: Along with dna, what is the other main type of nucleic acid? Choices: - nucleotides - protein - cytoplasm - rna A:
rna
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Answer the following question given this paragraph: The skeletal system protects the soft organs of the body. For example, the skull surrounds and protects the brain. The ribs protect the heart and lungs. Q: What system protects the soft organs of the body? Choices: - nervous system - digestive system - Cardiovascular system - skeletal system A:
skeletal system
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Answer the following question given this paragraph: You might have noticed that plants bend toward the light. This is an example of a tropism where light is the stimulus, known as phototropism ( Figure below ). To obtain more light for photosynthesis, leaves and stems grow toward the light. On the other hand, roots grow away from light. This is beneficial for the roots, because they need to obtain water and nutrients from deep within the ground. Q: A tropism where light is the stimulus is known as what? Choices: - Geotropism - Thermotropism - Atropism - phototropism A:
phototropism
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