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Biology, 09.10.2019 01:30 stefanylopez731
On a cold winter morning, a person waiting for the bus starts shivering. the muscles used in shivering produce extra heat that warm the body.
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Biology, 21.06.2019 16:00
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove
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Biology, 21.06.2019 18:40
Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.
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Biology, 22.06.2019 06:10
Which process of living things produces water that enters the water cycle
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On a cold winter morning, a person waiting for the bus starts shivering. the muscles used in shiveri...
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