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expeople1 [14]
3 years ago
6

Which group of chordates does not possess true backbones?

Biology
2 answers:
vredina [299]3 years ago
7 0

it would be the lampreys because  they do have a backbone

FromTheMoon [43]3 years ago
5 0

No. Crocodilians are reptiles. and they are vertebrates, meaning they have a backbone. The answer is Lamprey.
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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.

Anaemia is defined as the decrease or the reduction of the oxygen carrying content of the blood which are the red blood cells.

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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