The ability of recipient T cells to recognize donor-derived antigens, called allorecognition, initiates allograft rejection. Once recipient T cells become activated, they undergo clonal expansion, differentiate into effector cells, and migrate into the graft where they promote tissue destruction.
Answer:
1.Sperm is a male reproductive material that form at the onset of puberty.
2. Sperms are produce in immense amount.
3. Sperms are motile.
Explanation:
1. Ovum is produced in females which is called egg.
2. Ovum is nonmotile.
3. They are produced in limited amount in a process called ovulation.
Answer:
Give nutrients for the corn seed to grow
Explanation:
The native Americans were using fish as fertilizers. Since fish fertilizer enhances soil quality, it also enhances soil productivity by supplying the essential nutrients for crop growth Fish fertilizers have blister nitrogen as well as the essential nutrients phosphorus as well as potassium.
This technique became popular when Native Americans taught the colonists such techniques of surviving in wilderness.
I wish this was easy bc I would’ve wanted to help
the answer would be A. DNA ligase if you have plato. lol d; :D...your welcome.