I believe its A because all the other one dont make scene really.
Each on diverged from the common ancestor and has its own accumulated mutations. If they have six differences each it would be 10,000 years per one mistake giving you a total of 60,000 years ago.
Positive selection of t cells occur in .the thymus
Answer:
The correct answer is: c) 3, 2, 5, 1, 4.
Explanation:
Endochondral ossification is the process in which <u>bone tissue is formed from a cartilage model</u>, unlike intramembranous ossification in which bone cells originate from mesenchymal stem cells. Endochondral ossification is key to: 1) the rudimentary formation of long bones, 2) the growth in lenght of long bones, and 3) the reparation if bone tissue when the bone is fractured.