Final answer:
The taxonomic term that represents the first species to migrate out of Africa is H. erectus, which spread into Eurasia around 1.8 million years ago.
Step-by-step explanation:
When matching the taxonomic terms to the description of the first species to have some members migrate out of Africa, the correct answer would be B) H. erectus. Homo erectus appeared around 1.8 million years ago and is widely accepted as the first hominin species to migrate out of the African continent. This migration led to the spread of H. erectus into Eurasia and eventually as far as Southeast Asia. This species displayed several key advancements such as increased brain size and use of tools that may have facilitated its migration and eventual settlement in a variety of climates and regions outside Africa.