Humans originated in Africa, and their closest relatives, the chimps and gorillas, are known only from Africa. So why is there speculation that this lineage (the Homininae) had its origins in Eurasia?
What will be an ideal response?
The reason is the extensive radiation of less derived hominids in Eurasia during the Miocene (dryopithecines, sivapithecines, etc.), which at some level contained the ancestry of the Homininae.
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________________________________________ describes all of the processes that occur within the animal
Fill in the blank(s) with correct word
Which of the following is accomplished by chewing?
a. grinding and breaking up food b. mixing food with saliva to facilitate swallowing c. reflexively increasing salivary, gastric, pancreatic, and bile secretion d. two of these answers. e. all of these answers.
The abdominal cavity is lined with ________.
A. the omental bursa B. superficial fascia C. mesenteries D. the greater omentum E. parietal peritoneum
All human cells have both class-1 and class-2 MHC molecules on their membrane surface.
Answer the following statement true (T) or false (F)