Ques:Answer the following question given this paragraph: A food chain is a simple diagram that shows one way energy flows through an ecosystem. Pictured below is an example of a food chain ( Figure below ). Producers form the base of all food chains. The consumers that eat producers are called primary consumers. The consumers that eat primary consumers are secondary consumers. This chain can continue to multiple levels. Q: What is a diagram that shows a single way that energy flows throughout an ecosystem? Choices: - fuel chain - dependent chain - water cycle - food chain A:

Ans:food chain
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Ques:Answer the following question given this paragraph: Metalloids are elements that fall between metals and nonmetals in the periodic table. Just seven elements are metalloids, so they are the smallest class of elements. In Figure above , they are color-coded orange. Examples of metalloids include boron (B), silicon (Si), and germanium (Ge). Q: Which elements fall between metals and nonmetals in the periodic table? Choices: - noble gases - halogens - synthetics - metalloids A:

Ans:metalloids
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Ques:Answer the following question given this paragraph: The ears are also responsible for the sense of balance. Balance is the ability to sense and maintain body position. The semicircular canals inside the ear (see Figure above ) contain fluid that moves when the head changes position. Tiny hairs lining the semicircular canals sense movement of the fluid. In response, they send nerve impulses to the vestibular nerve, which carries the impulses to the brain. The brain interprets the impulses and sends messages to the peripheral nervous system. This system maintains the body's balance by triggering contractions of skeletal muscles as needed. Q: What external feature in human beings is responsible for balance? Choices: - tails - brain - hands - ears A:

Ans:ears
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Ques:Answer the following question given this paragraph: Pressure is defined as the force per unit area on a surface. Q: Pressure is defined as the force per unit area on? Choices: - weight - gravity - speed - surface A:

Ans:
surface
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