Answer:
Antigen-presenting cells show digested antigens to T cells through the MHC on their surface, which allows the T cell to “see” the antigen and recognize it as foreign. The connection between the MHC and the receptor on the T cell is the first signal necessary to activate the T cell to respond to a tumor and destroy it.
Explanation:
The joints between cranial bones are called SUTURES
Answer:
energy
Explanation:
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Answer:
<u>DNA Helicase</u> unwinds DNA molecule
Human beings evolved during the cenozoic era