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alexandr402 [8]
3 years ago
13

List five chemical changes

Biology
1 answer:
valina [46]3 years ago
7 0
•Burning a log of wood 
•Mixing an acid with a base, producing water and a salt. 
•Photosynthesis - a process in which carbon dioxide and water are changed into sugars by plants. 
•Cracking heavy hydrocarbons to create lighter hydrocarbons (part of the process of refining oil). 
•Cooking examples: popcorn, cake, pancakes, and eggs 
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a

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Natasha2012 [34]

Answer:

Energy is lost at several levels from the body of an organism. Two of the phenomenons through which energy is lost are

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3 years ago
Which of these is a function of the blood? a) carry oxygen to the cells b) carry wastes to be removed c) both are functions of b
damaskus [11]

Answer:

c) Both are functions of blood, that is, to carry oxygen to  the cells and also remove wastes from the body.

Explanation:

Blood is a form  of connective  tissue and is made up of red blood cells,  white blood cells, platelets and blood plasma. The red blood cells contains a metallo-protein structure known as hemoglobin. This hemoglobin binds to the oxygen and carry them to the cells and the tissues for proper functioning of them. The waste products like carbon dioxide is carried by the blood from the body tissues to expel it out from the body.

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When new bare land has been created or the ecosystem has been severely damaged by a fire, what is likely to occur?
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C. pioneer species begin the process of succession

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