The medical word for it is called leukemia. my moms a nurse and my dads a doctor at john Hopkins hospital. so I know a lot of this stuff. <span />
Answer:
I think its D. Artificial Selection
Explanation:
Sorry if this didn't helped you.
Answer:
The possible genotypes are:

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good luck, i hope this helps :)</em>
The biosphere is everything that makes up life like plants and animals for instance but ecosystem is all the living and nonliving factors that affect the area hope this helps