The figure shows the evolution of HIV and SIV. Choose the true statements about the evolution of HIV (Select all that apply).
A. A strain of HIV is never more closely related to another strain of HIV than it is to a SIV strain.
B. HIV-1 group O is more closely related to SIV-chimpanzee than SIV-gorilla.
C. All strains of HIV are included within clades with SIV strains.
D. All strains of SIV are included within clades with HIV strains.
E. Humans acquired different subtypes of HIV from different primate hosts.
Answer: E
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The ________ can differentiate into stems, leaves, or flowers.
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