1. A
2. C
3. D
4.B
5. A,B, and maybe C.
6. B
7. D
8. A and B
9. A,
Answer:
you can't see sickle cell in a karyotype a it is inside one of the chromosomes
it is a single gene disorder
Explanation:
I think the answer is D
Hope that helps!
In order, from least complex to most complex:
cells.
tissues.
organs.
organ systems.
organism.