Answer:
The Immune system is a complex network of cells (such as lymphocytes) and organs that work together to defend the body against foreign substances (antigens) such as bacteria, a virus or tumor cell.
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Answer:
We always fed my brother purees and any food that was mushy and didn't need to be chewed
Explanation:
The answer should be C.
"Increased Exercise."
Over the next few days, the single cell divides into multiple cells. At the same time, the small cluster of dividing cells moves through the fallopian tube to the lining of the uterus. There it implants and starts to grow. For 8 weeks after implantation, it is called an embryo.
