Answer:
Explanation: In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into or out of, the cell by moving down it.
Answer:
The correct answers are given below
Explanation:
NK cells- Immunological surveillance
Plasma cells- Antibodies
CD4 lymphocytes- Helper cells
Macrophages- Phagocytosis
CD8 lymphocytes- Cytotoxic
IGg- Antibodies
IgE- Allergies
IgM- Primary response
Cotton mainly come from plantations or huge fields grow on smaller tree like plants. They are hand picked when ready. This cotton is then usually sent to a factory and turned into fabric which then turned into shirts, or sent to manufacturing companies.
~I hope this helped!
I am, yours most sincerely,
Joshua A. Bunn
Because it starts out as one cell