Ques:Q: What types of living beings have water vascular systems and unique tube feet? Read this paragraph and choose the correct option from the provided answers: Echinoderms have a unique water vascular system with tube feet. This allows slow but powerful movement. Choices: - diatoms - mollusks - Ducks - echinoderms A:

Ans:echinoderms
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Ques:Q: The scientific method is a method of research with defined steps that include experiments and careful what? Read this paragraph and choose the correct option from the provided answers: that have taken place during this time. There are however, areas of knowledge and human experience that the methods of science cannot be applied to. These include such things as answering purely moral questions, aesthetic questions, or what can be generally categorized as spiritual questions. Science has cannot investigate these areas because they are outside the realm of material phenomena, the phenomena of matter and energy, and cannot be observed and measured. The scientific method is a method of research with defined steps that include experiments and careful observation. The steps of the scientific method will be examined in detail later, but one of the most important aspects of this method is the testing of hypotheses. A hypothesis is a suggested explanation for an event, which can be tested. Hypotheses, or tentative explanations, are generally produced within the context of a scientific theory. A scientific theory is a generally accepted, thoroughly tested and confirmed explanation for a set of observations or phenomena. Scientific theory is the foundation of scientific knowledge. In addition, in many scientific disciplines (less so in biology) there are scientific laws, often expressed in mathematical formulas, which describe how elements of nature will behave under certain specific conditions. There is not an evolution of hypotheses through theories to laws as if they represented some increase in certainty about the world. Hypotheses are the day-to-day material that scientists work with and they are developed within the context of theories. Laws are concise descriptions of parts of the world that are amenable to formulaic or mathematical description. Natural Sciences What would you expect to see in a museum of natural sciences? Frogs? Plants? Dinosaur skeletons? Exhibits about how the brain functions? A planetarium? Gems and minerals? Or maybe all of the above? Science includes such diverse fields as astronomy, biology, computer sciences, geology, logic, physics, chemistry, and mathematics (Figure... Choices: - discovery - estimation - consideration - observation A:

Ans:observation
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Ques:Q: What do power plants burn to generate electricity? Read this paragraph and choose the correct option from the provided answers: Power plants and factories account for more than a quarter of fossil fuel use. Power plants burn fossil fuels to generate electricity. Factories burn fossil fuels to power machines. Choices: - nuclear fuel - biofuel - timber - fossil fuels A:

Ans:fossil fuels
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Ques:Q: Where is gabbro found? Read this paragraph and choose the correct option from the provided answers: Gabbro is a dark dense rock that can be found in oceanic crust. Choices: - volcanoes - forest floor - wetlands - oceanic crust A:

Ans:
oceanic crust
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