I'd say the correct answer your looking for is B.
The mantle and core of the earth are still hot because of the pressure of the overlying earth layers. The deeper the layer the hotter it is due to higher pressure, in lieu of the fact that temperature and directly proportional. In addition, some of the heat from the time the earth was formed is still trapped inside the earth and nuclear decay of radioactive elements in the regions ensure the earth does not cool.
The mantle and outer core of the earth are liquid while the inner core is solid. The former layers are liquid because the temperatures in these regions have surpassed the melting point of the elements that make up the layers. However, the inner core remains solid due to the enormous pressure in the region. The pressure is so high it prevents the element in the region from melting.
Answer:
troposphere
Explanation:
The layers of the atmosphere in order from lowest to highest are:
- Troposphere
- Stratosphere
- Mesosphere
- Thermosphere
- Exosphere
Answer:
С
a phospholipid bilayer with embedded and surface proteins surrounding the cell
Explanation:
Answer:
The mechanical digestion begins with the with and the tongue whch breaks the bread,press it staging the soft palate Chemical digestion follows with the saliva-enzyme salivary amylase. The enzymes acts on starch in the bread and converts this to Maltose.A diassacharides , and oligosaccharides This ends CHO digestion in the mouth.
The digesting bread is push by waves of contraction of the horizontal and vertical muscles of the oesophagus.This wavelike contractions is called Peristalsis.
This is push down into the stomach through the opening of the upper sphincter.In the stomach the pH of the amylase enzyme in the bread now called chyle is reduced(neutralized) by the HCL of the medium.No digestion occurs in the stomach.
In the small intestine is the enzyme pancreatic Maltase,secreted from the pancreas.This enzyme catalysis the hydrolysis of the maltose ( diasaccharides,) to some monosaccharides subunits.At this stage the digesting bread is called chyme,with its maltose content.
Still in the small intestine maltase(from the epithelial brush borders of the small intestine) converts the hydrolysis of maltose to the sub units of glucose,fructose, and galactose,making the end of CHO digestions in the small intestine.
The large intestine is for absorption of water and storage and removal of undigested foods from the body.It is made up of the cecum, colon, rectum and anus.As unwanted food passes through this.,massive water absorption occurs, it contents and structure is change to stool as it escapes through the anus, as faeces.
Explanation:
