Answer:
MHC Markers
Explanation:
The function of MHC molecules is to display peptide fragments derived from pathogens on the cell surface for recognition by the appropriate T cells.
I believe the answer would be D) kitchen scraps and grass clippings
Answer. True
Explanation:
When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
Answer:
I would type it up, but I decided to insert a picture.
Explanation:
I think it B. but I don't know if its correct or not.
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I see you got this from k12 too.
