The figure below shows a phylogenetic tree of immunodeficiency viruses.Suppose biologists had all of the information shown but did not have samples from sooty mangabeys.Under these conditions,what would you infer as the most likely source of HIV-2? 
Definitions:
Midbrain
A portion of the central nervous system associated with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.
Gray Matter
The darker-colored regions of the brain and spinal cord consisting mainly of neuronal cell bodies and branching dendrites.
White Matter
Brain and spinal cord tissue consisting mainly of myelinated nerve fibers, which facilitate the rapid transmission of signals between different parts of the central nervous system.
Glial Cells
Cells within the nervous system that provide physical and metabolic support to neurons, including insulation (myelination), defense against pathogens, and clearing of debris.
Q13: The eudicots<br>A) include the magnoliids.<br>B) include many
Q18: Which of the following is the largest
Q26: Which group uses pseudopods for locomotion?<br>A) Euglenids<br>B)
Q55: The domains of life are<br>A) Fungi,Plants,and Animals.<br>B)
Q56: Female Drosophila that are homozygous for a
Q60: The horsetails and ferns are members of
Q64: Most restriction sites are _ base pairs
Q74: Which group is not a member of
Q79: Which sequence forms a palindromic sequence in
Q87: Which group is not considered to belong