10,000 years ago
so the answer would be D.
hope this helps have a nice day,
brooke
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Those with the trait will carry on and reproduce and the offspring will have that same favorable trait, while he ones without the trait will die off and not reproduce. This is called natural selection.
Answer:
please give me brainlist and follow
Explanation:
A bone marrow transplant is also called a stem cell transplant or, more specifically, a hematopoietic stem cell transplant. Transplantation can be used to treat certain types of cancer, such as leukemia, myeloma, and lymphoma, and other blood and immune system diseases that affect the bone marrow.