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horrorfan [7]
3 years ago
11

Describe four clues and the instruments that scientists use to predict eruptions.

Biology
1 answer:
Ne4ueva [31]3 years ago
8 0
I'm not sure.... but Manuel scalpels?
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DNA and ATP 2. proteins and lipids 3. chitin and starch ... Singer proposed the fluid mosaic model of the cell membrane in which the cell membrane consists of a double lipid layer with proteins embedded in it to act as name tags or to aid in movement of larger molecules across the membrane.

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What is secreted by the gastric mucous neck cells and pancreatic duct cells to neutralize stomach acid?
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Bio carbonate ions

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The pancreas secrets an aqueous mixture ( water, digestive enzymes and bicarbonate ions) during digestion of food substances from the stomach into the duodenum to begin the process of absorption and assimilation.

The pancreatic duct are lined with duct cells. These are cells which secretes HCO3- ,into the aqueous mixture. This ion is basic. Therefore it  neutralizes the acidity of the  of  the chyme to  released from the stomach to enable the pancreatic enzyme to work.

The bicarbonate ions also prevent the walls of the pancreases from getting burnt by the effect if the acidity of the chyme.

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The hair colors of the members of a family are listed below.
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Storing energy because it’s not with the other energy
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