The two most common sites of bone marrow collection in an adult are the and .

Pelvic and sternum

Explanation:

bone marrow biopsy is a procedure that is used to obtain bone marrow usually with syringe for evaluation of various blood cells( leucocytes, erythrocytes ) and also for examination for different blood disesases such as leukemias and lymphomas and diagnose some genetic conditions. The common site for a bone marrow biopsy is the large pelvic bone near the hip and also some samples taken from the sternum (breastbone).

A bone marrow examination or test consists of two separate tests that are done at the same time namely:

1. Bone marrow aspiration that helps collect sample of the liquid portion of the bone marrow

2. Bone marrow biopsy that obtains a sample of the solid material.

Pelvic and sternum.

Explanation:

Bone marrow biopsy is a procedure where by sample of bone marrow is extracted to be tested in the laboratory. This test is done by the doctor when the platelets, erythrocytes or white blood cells level is to high or low. The biopsy help to determine any abnormalities that may have occur.

Bone marrow is the spongy tissue found in the body that produced red blood cells through it stem cells. One of the common sites for bone marrow biopsy in adult is the pelvic bone near the hip. The second sites is the sternum i.e the breast none for aspirate. The patient lies on his back on the pillow and raise his chest up to obtain the bone marrow .

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

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