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andriy [413]
3 years ago
11

Describe how a soil particle moves downhill during the freeze-thaw process.

Biology
1 answer:
I am Lyosha [343]3 years ago
8 0
<span>It would freeze up during the freeze process and become part or the ice that is covering the ground. Then as the ice begins to thaw it will run down hill with the water that is created from the ice. Then it would freeze again with the next cycle and move down hill again when it thaws out. This would continue until the particle reaches a block or the bottom of the hill and thus stopping the process.</span>
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Humans, like other organisms, require energy for growth and repair. When cells create ATP for energy, carbon dioxide is produced
ad-work [718]

Answer:

The circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.

Explanation:

Carbon dioxide produced by the cells and tissues during cellular respiration is removed from the body through the interaction of the circulatory and respiratory system. The medium of transport of carbon dioxide is the blood which carries to the lungs, where it is expelled from the body in ordernto maintain homeostasis in the body.

Carbon dioxide molecules are transported in the blood from body tissues to the lungs in three ways:

1. Dissolution directly into the blood - due to its greater solubility in blood than oxygen, carbon dioxide is dissolved in blood plasma. On reaching the lungs, it leaves the blood by diffusion and is then expelled out of the body.

2. Binding to hemoglobin - carbon dioxide binds reversibly with haemoglobin in the red blood cells to form a molecule called carbaminohemoglobin. When it reaches the lungs, the carbon dioxide freely dissociate from the hemoglobin and is expelled from the body.

3. Carried as a bicarbonate ion - the majority of carbon dioxide molecules are carried as part of the bicarbonate buffer system. In this system, carbon dioxide diffuses into the red blood cells. The enzyme carbonic anhydrase within the red blood cells quickly converts the carbon dioxide into carbonic acid (H2CO3) which then dissociates into bicarbonate and hydrogen ions. The bicarbonate ions leaves the red blood cells in exchange for chloride ions in the plasma. The bicarbonate ions then travel in plasma to the lungs, where they enter the red blood cells again. It combines with hydrogen ions from the haemoglobin to form carbonic acid. Carbonic anhydrase breaks carbonic acid down into water and carbon dioxide which is then expelled from the lungs.

8 0
3 years ago
How do you tell if physicalchange has occurred?
QveST [7]
No new substance is produced.
4 0
3 years ago
What is the likely motivation for a person giving up soup after an extended illness? Values Habit Social interactions Positive a
makkiz [27]

Answer:

The correct answer is: Positive Associations.

Explanation:

  • Due to prolonged illness the person has lost all desire to survive.
  • This is the reason why he stopped consuming food.
  • Under such a situation, it is necessary that the person should be exposed to people who can positively counsel the person and make the ill person realise the importance of life.
  • It is necessary to make the person realise what he would gain if he chooses to survive and what he would lose if he chooses to die.
  • It is necessary to remind the person of all the possible goals he could achieve in his life if he chooses to survive.
7 0
3 years ago
How would replanting trees impact the carbon cycle?
vampirchik [111]

Answer:

It can reduce carbon in the atmosphere.

3 0
2 years ago
So were is the genetic material find in a prokaryotic cell
tiny-mole [99]
Endomembrane system -- not in prokaryotes
cytoskeleton -- a structural part of cytoplasm sometimes occurrent in prokaryotes
mitochondria -- not in prokaryotes 
nucleus -- if this is a "membrane-bound" nucleus, then definitely not in prokaryotes
cytoplasm -- this is the fluid that houses everything in the cell membrane
flagella -- little "tail" for locomotion, so no
cilia -- similar to flagella, little feelers usually for locomotion 
ribosomes -- these make protein using amino acids
chloroplasts -- not in prokaryotes
membrane -- just a casing surrounding a cell or organelle
organelles -- general word for the parts of a cell that perform various functions
cell membrane -- just the casing for the cell, not where genetic material's located
<span>nucleoid --- ding ding ding :-) this is it; a nucleoid is the genetic material which is loosely existing in the cytoplasm of a prokaryotic cell</span>
5 0
3 years ago
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