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vichka [17]
3 years ago
7

The sun shines down on this family as they play on the beach. What is this called?

Biology
1 answer:
olasank [31]3 years ago
7 0

Answer:

i think that is radiation

Explanation:

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Severe anemia may trigger an adaptive conversion of:
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Severe anemia may trigger an adaptive conversion of yellow bone marrow to red bone marrow.

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These red blood cells and other blood cells which include the white blood cells and the platelets are produced in the body by the bone marrows by a process called haemopoiesis.

The bone marrow is divided into two:

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The red bone marrow is made up of stem cells which can be converted to red cells when the need arises while yellow bone marrow is made up of fat.

During health conditions such as anaemia, there is increase in the need of red blood cells by the body.

There is usually the conversation of yellow bone marrow to red bone marrow to compensate for the increased demand of red blood cells.

This conversation is called an adaptive conversation.

Therefore,Severe anemia may trigger an adaptive conversion of yellow bone marrow to red bone marrow.

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3 0
2 years ago
The autorhythmicity of cardiac pacemaker cells is made possible by the reduced permeability of _______. The autorhythmicity of c
vichka [17]

Answer:

<h2>potassium</h2>

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The heartbeats of the heart are controlled by the sinoatrial node also known as the pacemaker of the heart. The impulse is generated in the conducting cells of the pacemaker as a result of the movement of sodium, potassium and calcium ions.

The sodium channels allow the movement of sodium into the cell which depolarizes the membrane from -60mv to -40 mv. At this point, the calcium gated channels open which allow the entry of the calcium in the cell which depolarizes the cell up to +5mv.

At this point, the potassium channels open which allows the potassium ions to move out of the cell. This repolarizes the cell and hence the cycle again begins.  Reducing the permeability of the potassium ions help generate the autorhythmicity due to repolarization and thus is the correct answer.

7 0
3 years ago
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