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amid [387]
3 years ago
15

How does heat flow inside Earth move the tectonic plates?

Biology
1 answer:
fomenos3 years ago
3 0
<span>the plates located at our planet's surface move because of the extreme heat in the earth's core that then leads to the molten rock in the mantle layer to move. it moves in a pattern called a convection cell, it forms when warm material rises, cools down, and eventually sinks down. </span>
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Where does mechanical breakdown of food occurs?
Verizon [17]
There are lots of location that mechanical digestion occurs. But 2 common locations of mechanical breakdown of food (or physical digestion) occur in the mouth and in the duodenum. 

Mechanical breakdown of food does not require enzymes, which is different from chemical digestion. Usually, the main function of mechanical digestion is to help speed up the chemical digestion later, usually by increasing the surface area of the food. 

In the mouth, we chew the food. This can help increase the amount of surface area of the food we ate so that later on, the chemical digestion that requires enzymes such as amylase or protease will speed up. More enzymes can contact the food. 

In duodenum, bile that are produced from the liver helps emulsify fats and lipids into small oil droplets. Again, this action can also help increase the surface area of the lipids so that the digestion of lipids with enzyme lipase would be more efficient. Note that bile is important because only enzyme lipase can digest lipids in the duodenum, so if bile is not produced, fats are hardly digested.

Other types of mechanical digestion may include the churning in stomach, or the squeezing of food in the oesophagus (peristalsis). 
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Summarize where carbon is found on Earth and how much of it is in the human body
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Carbon is the basic building block to most cells in the body.

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Carbon makes up 18% of the human body.

Sugars in the body like glucose hold carbon elements.

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Explanation:

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